131664260 has 96 divisors (see below), whose sum is σ = 345311232. Its totient is φ = 41057280.

The previous prime is 131664257. The next prime is 131664277. The reversal of 131664260 is 62466131.

It is a happy number.

It is a super-2 number, since 2×131664260² = 34670954722695200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132365 + ... + 133355.

It is an arithmetic number, because the mean of its divisors is an integer number (3596992).

Almost surely, 2^131664260 is an apocalyptic number.

131664260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131664260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172655616).

131664260 is an abundant number, since it is smaller than the sum of its proper divisors (213646972).

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

131664260 is a wasteful number, since it uses less digits than its factorization.

131664260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 131664260 is about 11474.5047823425. The cubic root of 131664260 is about 508.7322865286.

The spelling of 131664260 in words is "one hundred thirty-one million, six hundred sixty-four thousand, two hundred sixty".