130557437 has 4 divisors (see below), whose sum is σ = 130786656. Its totient is φ = 130328220.

The previous prime is 130557431. The next prime is 130557439. The reversal of 130557437 is 734755031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130557437 - 2⁸ = 130557181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130557397 and 130557406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130557431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113753 + ... + 114894.

It is an arithmetic number, because the mean of its divisors is an integer number (32696664).

Almost surely, 2^130557437 is an apocalyptic number.

It is an amenable number.

130557437 is a deficient number, since it is larger than the sum of its proper divisors (229219).

130557437 is an equidigital number, since it uses as much as digits as its factorization.

130557437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229218.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 130557437 is about 11426.1733314352. The cubic root of 130557437 is about 507.3027367976.

The spelling of 130557437 in words is "one hundred thirty million, five hundred fifty-seven thousand, four hundred thirty-seven".