131525226 has 48 divisors (see below), whose sum is σ = 344844864. Its totient is φ = 35367552.

The previous prime is 131525213. The next prime is 131525231. The reversal of 131525226 is 622525131.

It is a happy number.

131525226 is a `hidden beast` number, since 131 + 5 + 2 + 522 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 131525226.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28560 + ... + 32843.

It is an arithmetic number, because the mean of its divisors is an integer number (7184268).

Almost surely, 2^131525226 is an apocalyptic number.

131525226 is an abundant number, since it is smaller than the sum of its proper divisors (213319638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131525226 is a wasteful number, since it uses less digits than its factorization.

131525226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61435 (or 61432 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 131525226 is about 11468.4447943041. Note that the first 3 decimals coincide. The cubic root of 131525226 is about 508.5531541503.

The spelling of 131525226 in words is "one hundred thirty-one million, five hundred twenty-five thousand, two hundred twenty-six".