130631278 has 8 divisors (see below), whose sum is σ = 196962768. Its totient is φ = 64977024.

The previous prime is 130631269. The next prime is 130631309. The reversal of 130631278 is 872136031.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168826 + ... + 169597.

It is an arithmetic number, because the mean of its divisors is an integer number (24620346).

Almost surely, 2^130631278 is an apocalyptic number.

130631278 is a deficient number, since it is larger than the sum of its proper divisors (66331490).

130631278 is a wasteful number, since it uses less digits than its factorization.

130631278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338618.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 130631278 is about 11429.4040964523. The cubic root of 130631278 is about 507.3983592870.

It can be divided in two parts, 13063 and 1278, that added together give a palindrome (14341).

The spelling of 130631278 in words is "one hundred thirty million, six hundred thirty-one thousand, two hundred seventy-eight".