136341891 has 24 divisors (see below), whose sum is σ = 236920320. Its totient is φ = 73808496.

The previous prime is 136341889. The next prime is 136341911. The reversal of 136341891 is 198143631.

136341891 is a `hidden beast` number, since 1 + 3 + 634 + 18 + 9 + 1 = 666.

It is not a de Polignac number, because 136341891 - 2¹ = 136341889 is a prime.

It is a super-2 number, since 2×136341891² = 37178222482911762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136341871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55755 + ... + 58148.

It is an arithmetic number, because the mean of its divisors is an integer number (9871680).

Almost surely, 2^136341891 is an apocalyptic number.

136341891 is a deficient number, since it is larger than the sum of its proper divisors (100578429).

136341891 is a wasteful number, since it uses less digits than its factorization.

136341891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113935 (or 113932 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 136341891 is about 11676.5530444562. The cubic root of 136341891 is about 514.6868879382.

The spelling of 136341891 in words is "one hundred thirty-six million, three hundred forty-one thousand, eight hundred ninety-one".