130252989 has 4 divisors (see below), whose sum is σ = 173670656. Its totient is φ = 86835324.

The previous prime is 130252981. The next prime is 130253021. The reversal of 130252989 is 989252031.

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 not a de Polignac number, because 130252989 - 2³ = 130252981 is a prime.

It is a super-2 number, since 2×130252989² = 33931682286868242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130252981) 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, 21708829 + ... + 21708834.

It is an arithmetic number, because the mean of its divisors is an integer number (43417664).

Almost surely, 2^130252989 is an apocalyptic number.

It is an amenable number.

130252989 is a deficient number, since it is larger than the sum of its proper divisors (43417667).

130252989 is an equidigital number, since it uses as much as digits as its factorization.

130252989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43417666.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 130252989 is about 11412.8431602296. The cubic root of 130252989 is about 506.9081020293.

The spelling of 130252989 in words is "one hundred thirty million, two hundred fifty-two thousand, nine hundred eighty-nine".