130257391 has 4 divisors (see below), whose sum is σ = 142098984. Its totient is φ = 118415800.

The previous prime is 130257389. The next prime is 130257401. The reversal of 130257391 is 193752031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130257391 - 2¹ = 130257389 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130257341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5920780 + ... + 5920801.

It is an arithmetic number, because the mean of its divisors is an integer number (35524746).

Almost surely, 2^130257391 is an apocalyptic number.

130257391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130257391 is a deficient number, since it is larger than the sum of its proper divisors (11841593).

130257391 is a wasteful number, since it uses less digits than its factorization.

130257391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11841592.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 130257391 is about 11413.0360115089. The cubic root of 130257391 is about 506.9138124147.

The spelling of 130257391 in words is "one hundred thirty million, two hundred fifty-seven thousand, three hundred ninety-one".