131522466 has 48 divisors (see below), whose sum is σ = 275644512. Its totient is φ = 41811840.

The previous prime is 131522431. The next prime is 131522473. The reversal of 131522466 is 664225131.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 959950 + ... + 960086.

It is an arithmetic number, because the mean of its divisors is an integer number (5742594).

Almost surely, 2^131522466 is an apocalyptic number.

131522466 is an abundant number, since it is smaller than the sum of its proper divisors (144122046).

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

131522466 is a wasteful number, since it uses less digits than its factorization.

131522466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 246 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 131522466 is about 11468.3244634951. The cubic root of 131522466 is about 508.5495968694.

Adding to 131522466 its reverse (664225131), we get a palindrome (795747597).

The spelling of 131522466 in words is "one hundred thirty-one million, five hundred twenty-two thousand, four hundred sixty-six".