78530112 has 42 divisors (see below), whose sum is σ = 225094038. Its totient is φ = 26176512.

The previous prime is 78530107. The next prime is 78530113. The reversal of 78530112 is 21103587.

It can be written as a sum of positive squares in only one way, i.e., 57517056 + 21013056 = 7584^2 + 4584^2 .

It is not an unprimeable number, because it can be changed into a prime (78530113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67593 + ... + 68744.

Almost surely, 2^78530112 is an apocalyptic number.

78530112 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

78530112 is an abundant number, since it is smaller than the sum of its proper divisors (146563926).

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

78530112 is a wasteful number, since it uses less digits than its factorization.

78530112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136355 (or 136342 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 78530112 is about 8861.7217288741. The cubic root of 78530112 is about 428.2316270336.

Adding to 78530112 its reverse (21103587), we get a palindrome (99633699).

The spelling of 78530112 in words is "seventy-eight million, five hundred thirty thousand, one hundred twelve".