130440051 has 40 divisors (see below), whose sum is σ = 223646720. Its totient is φ = 74218032.

The previous prime is 130440041. The next prime is 130440067. The reversal of 130440051 is 150044031.

It is a happy number.

It is not a de Polignac number, because 130440051 - 2⁶ = 130439987 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 (130440041) 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 39 ways as a sum of consecutive naturals, for example, 214590 + ... + 215196.

It is an arithmetic number, because the mean of its divisors is an integer number (5591168).

Almost surely, 2^130440051 is an apocalyptic number.

130440051 is a deficient number, since it is larger than the sum of its proper divisors (93206669).

130440051 is an equidigital number, since it uses as much as digits as its factorization.

130440051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 130440051 is about 11421.0354609379. The cubic root of 130440051 is about 507.1506502350.

Adding to 130440051 its reverse (150044031), we get a palindrome (280484082).

The spelling of 130440051 in words is "one hundred thirty million, four hundred forty thousand, fifty-one".