78161124 has 12 divisors (see below), whose sum is σ = 182375984. Its totient is φ = 26053704.

The previous prime is 78161123. The next prime is 78161147. The reversal of 78161124 is 42116187.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×78161124² = 12218322609886752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78161091 and 78161100.

It is not an unprimeable number, because it can be changed into a prime (78161123) 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 3 ways as a sum of consecutive naturals, for example, 3256702 + ... + 3256725.

Almost surely, 2^78161124 is an apocalyptic number.

It is an amenable number.

78161124 is an abundant number, since it is smaller than the sum of its proper divisors (104214860).

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

78161124 is a wasteful number, since it uses less digits than its factorization.

78161124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6513434 (or 6513432 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 78161124 is about 8840.8780106955. The cubic root of 78161124 is about 427.5598657655.

The spelling of 78161124 in words is "seventy-eight million, one hundred sixty-one thousand, one hundred twenty-four".