131332004 has 36 divisors (see below), whose sum is σ = 246739584. Its totient is φ = 61147776.

The previous prime is 131331997. The next prime is 131332031. The reversal of 131332004 is 400233131.

It is a happy number.

It is a super-4 number, since 4×131332004⁴ (a number of 34 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118517 + ... + 119619.

Almost surely, 2^131332004 is an apocalyptic number.

It is an amenable number.

131332004 is a deficient number, since it is larger than the sum of its proper divisors (115407580).

131332004 is a wasteful number, since it uses less digits than its factorization.

131332004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 131332004 is about 11460.0176265135. The cubic root of 131332004 is about 508.3039958225.

Adding to 131332004 its reverse (400233131), we get a palindrome (531565135).

The spelling of 131332004 in words is "one hundred thirty-one million, three hundred thirty-two thousand, four".