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136966569 = 3171393
BaseRepresentation
bin10000010100111…
…11000110101001
3100112201121210220
420022133012221
5240030412234
621331400253
73252124305
oct1012370651
9315647726
10136966569
1170350013
1239a53089
13224b770c
1414294d05
15c057a49
hex829f1a9

136966569 has 16 divisors (see below), whose sum is σ = 194765760. Its totient is φ = 85321536.

The previous prime is 136966561. The next prime is 136966631. The reversal of 136966569 is 965669631.

It is not a de Polignac number, because 136966569 - 23 = 136966561 is a prime.

It is a super-2 number, since 2×1369665692 = 37519682047263522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (136966561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 985302 + ... + 985440.

It is an arithmetic number, because the mean of its divisors is an integer number (12172860).

Almost surely, 2136966569 is an apocalyptic number.

It is an amenable number.

136966569 is a deficient number, since it is larger than the sum of its proper divisors (57799191).

136966569 is an frugal number, since it uses more digits than its factorization.

136966569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 159 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 51.

The square root of 136966569 is about 11703.2717220442. The cubic root of 136966569 is about 515.4717379280.

136966569 divided by its sum of digits (51) gives a cube (2685619 = 1393).

The spelling of 136966569 in words is "one hundred thirty-six million, nine hundred sixty-six thousand, five hundred sixty-nine".

Divisors: 1 3 17 51 139 417 2363 7089 19321 57963 328457 985371 2685619 8056857 45655523 136966569