78161007 has 16 divisors (see below), whose sum is σ = 105562112. Its totient is φ = 51438240.

The previous prime is 78160981. The next prime is 78161009. The reversal of 78161007 is 70016187.

It is not a de Polignac number, because 78161007 - 2⁸ = 78160751 is a prime.

It is a super-2 number, since 2×78161007² = 12218286030508098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78161009) 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 15 ways as a sum of consecutive naturals, for example, 102873 + ... + 103629.

It is an arithmetic number, because the mean of its divisors is an integer number (6597632).

Almost surely, 2^78161007 is an apocalyptic number.

78161007 is a deficient number, since it is larger than the sum of its proper divisors (27401105).

78161007 is a wasteful number, since it uses less digits than its factorization.

78161007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158.

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 78161007 is about 8840.8713937032. The cubic root of 78161007 is about 427.5596524262.

The spelling of 78161007 in words is "seventy-eight million, one hundred sixty-one thousand, seven".