130523391 has 24 divisors (see below), whose sum is σ = 191086896. Its totient is φ = 85847040.

The previous prime is 130523381. The next prime is 130523441. The reversal of 130523391 is 193325031.

It is a happy number.

130523391 is a `hidden beast` number, since 130 + 523 + 3 + 9 + 1 = 666.

It is not a de Polignac number, because 130523391 - 2⁹ = 130522879 is a prime.

It is a house number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130523311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282901 + ... + 283361.

It is an arithmetic number, because the mean of its divisors is an integer number (7961954).

Almost surely, 2^130523391 is an apocalyptic number.

130523391 is a deficient number, since it is larger than the sum of its proper divisors (60563505).

130523391 is a wasteful number, since it uses less digits than its factorization.

130523391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 130523391 is about 11424.6834091803. The cubic root of 130523391 is about 507.2586358233.

The spelling of 130523391 in words is "one hundred thirty million, five hundred twenty-three thousand, three hundred ninety-one".