78915126 has 16 divisors (see below), whose sum is σ = 159458544. Its totient is φ = 26033664.

The previous prime is 78915121. The next prime is 78915127. The reversal of 78915126 is 62151987.

It is a super-2 number, since 2×78915126² = 12455194223191752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78915121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67215 + ... + 68378.

It is an arithmetic number, because the mean of its divisors is an integer number (9966159).

Almost surely, 2^78915126 is an apocalyptic number.

78915126 is an abundant number, since it is smaller than the sum of its proper divisors (80543418).

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

78915126 is a wasteful number, since it uses less digits than its factorization.

78915126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135695.

The product of its digits is 30240, while the sum is 39.

The square root of 78915126 is about 8883.4185987152. The cubic root of 78915126 is about 428.9303248596.

The spelling of 78915126 in words is "seventy-eight million, nine hundred fifteen thousand, one hundred twenty-six".