235525131 has 16 divisors (see below), whose sum is σ = 356352000. Its totient is φ = 153675144.

The previous prime is 235525127. The next prime is 235525139. The reversal of 235525131 is 131525532.

It is a happy number.

235525131 is a `hidden beast` number, since 2 + 3 + 5 + 525 + 131 = 666.

It is not a de Polignac number, because 235525131 - 2² = 235525127 is a prime.

It is a super-2 number, since 2×235525131² = 110944174665134322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 235525095 and 235525104.

It is not an unprimeable number, because it can be changed into a prime (235525139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91531 + ... + 94068.

It is an arithmetic number, because the mean of its divisors is an integer number (22272000).

Almost surely, 2^235525131 is an apocalyptic number.

235525131 is a deficient number, since it is larger than the sum of its proper divisors (120826869).

235525131 is a wasteful number, since it uses less digits than its factorization.

235525131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185655 (or 185649 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 235525131 is about 15346.8280436056. The cubic root of 235525131 is about 617.5598949699.

The spelling of 235525131 in words is "two hundred thirty-five million, five hundred twenty-five thousand, one hundred thirty-one".