130831387 has 8 divisors (see below), whose sum is σ = 132678000. Its totient is φ = 128997984.

The previous prime is 130831381. The next prime is 130831399. The reversal of 130831387 is 783138031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130831387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130831381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17553 + ... + 23869.

It is an arithmetic number, because the mean of its divisors is an integer number (16584750).

Almost surely, 2^130831387 is an apocalyptic number.

130831387 is a deficient number, since it is larger than the sum of its proper divisors (1846613).

130831387 is a wasteful number, since it uses less digits than its factorization.

130831387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6605.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 130831387 is about 11438.1548774267. The cubic root of 130831387 is about 507.6573150748.

The spelling of 130831387 in words is "one hundred thirty million, eight hundred thirty-one thousand, three hundred eighty-seven".