131331000 has 64 divisors (see below), whose sum is σ = 409762080. Its totient is φ = 35020800.

The previous prime is 131330993. The next prime is 131331017. The reversal of 131331000 is 133131.

It is a super-2 number, since 2×131331000² = 34495663122000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18889 + ... + 24888.

Almost surely, 2^131331000 is an apocalyptic number.

131331000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131331000 is an abundant number, since it is smaller than the sum of its proper divisors (278431080).

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

131331000 is a wasteful number, since it uses less digits than its factorization.

131331000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43801 (or 43787 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 131331000 is about 11459.9738219596. The cubic root of 131331000 is about 508.3027005340.

Adding to 131331000 its reverse (133131), we get a palindrome (131464131).

The spelling of 131331000 in words is "one hundred thirty-one million, three hundred thirty-one thousand".