78136316 has 12 divisors (see below), whose sum is σ = 136800888. Its totient is φ = 39050352.

The previous prime is 78136277. The next prime is 78136319. The reversal of 78136316 is 61363187.

It is a super-2 number, since 2×78136316² = 12210567756103712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78136319) 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 3 ways as a sum of consecutive naturals, for example, 13175 + ... + 18161.

It is an arithmetic number, because the mean of its divisors is an integer number (11400074).

Almost surely, 2^78136316 is an apocalyptic number.

It is an amenable number.

78136316 is a deficient number, since it is larger than the sum of its proper divisors (58664572).

78136316 is a wasteful number, since it uses less digits than its factorization.

78136316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8908 (or 8906 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 78136316 is about 8839.4748712805. The cubic root of 78136316 is about 427.5146257664.

The spelling of 78136316 in words is "seventy-eight million, one hundred thirty-six thousand, three hundred sixteen".