131000304 has 20 divisors (see below), whose sum is σ = 338417576. Its totient is φ = 43666752.

The previous prime is 131000293. The next prime is 131000321. The reversal of 131000304 is 403000131.

It is a super-2 number, since 2×131000304² = 34322159296184832, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 131000304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1364539 + ... + 1364634.

Almost surely, 2^131000304 is an apocalyptic number.

It is an amenable number.

131000304 is an abundant number, since it is smaller than the sum of its proper divisors (207417272).

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

131000304 is a wasteful number, since it uses less digits than its factorization.

131000304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729184 (or 2729178 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 131000304 is about 11445.5364225536. The cubic root of 131000304 is about 507.8757006733.

Adding to 131000304 its reverse (403000131), we get a palindrome (534000435).

The spelling of 131000304 in words is "one hundred thirty-one million, three hundred four", and thus it is an aban number.