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135814841 = 971499397
BaseRepresentation
bin10000001100001…
…01111010111001
3100110120002221022
420012011322321
5234232033331
621250552225
73236256431
oct1006057271
9313502838
10135814841
116a733778
1239598675
13221a3416
14140752c1
15bdcb67b
hex8185eb9

135814841 has 8 divisors (see below), whose sum is σ = 138150600. Its totient is φ = 133498368.

The previous prime is 135814823. The next prime is 135814843. The reversal of 135814841 is 148418531.

It can be written as a sum of positive squares in 4 ways, for example, as 5740816 + 130074025 = 2396^2 + 11405^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135814841 - 214 = 135798457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135814843) 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 7 ways as a sum of consecutive naturals, for example, 9755 + ... + 19151.

It is an arithmetic number, because the mean of its divisors is an integer number (17268825).

Almost surely, 2135814841 is an apocalyptic number.

It is an amenable number.

135814841 is a deficient number, since it is larger than the sum of its proper divisors (2335759).

135814841 is an equidigital number, since it uses as much as digits as its factorization.

135814841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9643.

The product of its digits is 15360, while the sum is 35.

The square root of 135814841 is about 11653.9624591810. The cubic root of 135814841 is about 514.0228317817.

The spelling of 135814841 in words is "one hundred thirty-five million, eight hundred fourteen thousand, eight hundred forty-one".

Divisors: 1 97 149 9397 14453 911509 1400153 135814841