78130134 has 24 divisors (see below), whose sum is σ = 169445952. Its totient is φ = 26018160.

The previous prime is 78130127. The next prime is 78130139. The reversal of 78130134 is 43103187.

It is a super-2 number, since 2×78130134² = 12208635677715912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78130098 and 78130107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78130139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31624 + ... + 34004.

It is an arithmetic number, because the mean of its divisors is an integer number (7060248).

Almost surely, 2^78130134 is an apocalyptic number.

78130134 is an abundant number, since it is smaller than the sum of its proper divisors (91315818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78130134 is a wasteful number, since it uses less digits than its factorization.

78130134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4212 (or 4209 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 78130134 is about 8839.1251829579. The cubic root of 78130134 is about 427.5033507483.

The spelling of 78130134 in words is "seventy-eight million, one hundred thirty thousand, one hundred thirty-four".