131330040 has 32 divisors (see below), whose sum is σ = 393990480. Its totient is φ = 35021312.

The previous prime is 131330021. The next prime is 131330053. The reversal of 131330040 is 40033131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547089 + ... + 547328.

Almost surely, 2^131330040 is an apocalyptic number.

131330040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131330040 is an abundant number, since it is smaller than the sum of its proper divisors (262660440).

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

131330040 is a wasteful number, since it uses less digits than its factorization.

131330040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094431 (or 1094427 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 131330040 is about 11459.9319369707. The cubic root of 131330040 is about 508.3014620049.

Adding to 131330040 its reverse (40033131), we get a palindrome (171363171).

The spelling of 131330040 in words is "one hundred thirty-one million, three hundred thirty thousand, forty".