131523264 has 98 divisors (see below), whose sum is σ = 391447020. Its totient is φ = 43825536.

The previous prime is 131523257. The next prime is 131523277. The reversal of 131523264 is 462325131.

131523264 is a `hidden beast` number, since 131 + 523 + 2 + 6 + 4 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 45247 + ... + 48065.

Almost surely, 2^131523264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131523264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195723510).

131523264 is an abundant number, since it is smaller than the sum of its proper divisors (259923756).

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

131523264 is an frugal number, since it uses more digits than its factorization.

131523264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849 (or 2824 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 131523264 is about 11468.3592549240. The cubic root of 131523264 is about 508.5506253927.

Adding to 131523264 its reverse (462325131), we get a palindrome (593848395).

The spelling of 131523264 in words is "one hundred thirty-one million, five hundred twenty-three thousand, two hundred sixty-four".