78131076 has 24 divisors (see below), whose sum is σ = 186753504. Its totient is φ = 25408320.

The previous prime is 78131071. The next prime is 78131083. The reversal of 78131076 is 67013187.

It is a super-2 number, since 2×78131076² = 12208930073835552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78131071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78910 + ... + 79893.

It is an arithmetic number, because the mean of its divisors is an integer number (7781396).

Almost surely, 2^78131076 is an apocalyptic number.

It is an amenable number.

78131076 is an abundant number, since it is smaller than the sum of its proper divisors (108622428).

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

78131076 is a wasteful number, since it uses less digits than its factorization.

78131076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158851 (or 158849 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 78131076 is about 8839.1784686135. The cubic root of 78131076 is about 427.5050688500.

The spelling of 78131076 in words is "seventy-eight million, one hundred thirty-one thousand, seventy-six".