130526557 has 4 divisors (see below), whose sum is σ = 149173216. Its totient is φ = 111879900.

The previous prime is 130526531. The next prime is 130526569. The reversal of 130526557 is 755625031.

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 a de Polignac number, because none of the positive numbers 2^k-130526557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130526857) 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, 9323319 + ... + 9323332.

It is an arithmetic number, because the mean of its divisors is an integer number (37293304).

Almost surely, 2^130526557 is an apocalyptic number.

It is an amenable number.

130526557 is a deficient number, since it is larger than the sum of its proper divisors (18646659).

130526557 is an equidigital number, since it uses as much as digits as its factorization.

130526557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18646658.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 130526557 is about 11424.8219679783. The cubic root of 130526557 is about 507.2627371772.

The spelling of 130526557 in words is "one hundred thirty million, five hundred twenty-six thousand, five hundred fifty-seven".