78115130 has 16 divisors (see below), whose sum is σ = 146721024. Its totient is φ = 29887440.

The previous prime is 78115129. The next prime is 78115151. The reversal of 78115130 is 3151187.

It is a super-2 number, since 2×78115130² = 12203947069833800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78115130.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169586 + ... + 170045.

It is an arithmetic number, because the mean of its divisors is an integer number (9170064).

Almost surely, 2^78115130 is an apocalyptic number.

78115130 is a deficient number, since it is larger than the sum of its proper divisors (68605894).

78115130 is a wasteful number, since it uses less digits than its factorization.

78115130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339661.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 78115130 is about 8838.2764156820. The cubic root of 78115130 is about 427.4759832842.

The spelling of 78115130 in words is "seventy-eight million, one hundred fifteen thousand, one hundred thirty".