130512279 has 8 divisors (see below), whose sum is σ = 177719040. Its totient is φ = 85156856.

The previous prime is 130512269. The next prime is 130512289. The reversal of 130512279 is 972215031.

It is an interprime number because it is at equal distance from previous prime (130512269) and next prime (130512289).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130512279 - 2¹⁵ = 130479511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130512259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462669 + ... + 462950.

It is an arithmetic number, because the mean of its divisors is an integer number (22214880).

Almost surely, 2^130512279 is an apocalyptic number.

130512279 is a deficient number, since it is larger than the sum of its proper divisors (47206761).

130512279 is an equidigital number, since it uses as much as digits as its factorization.

130512279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925669.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 130512279 is about 11424.1970833840. The cubic root of 130512279 is about 507.2442404012.

The spelling of 130512279 in words is "one hundred thirty million, five hundred twelve thousand, two hundred seventy-nine".