78614131 has 4 divisors (see below), whose sum is σ = 78664600. Its totient is φ = 78563664.

The previous prime is 78614117. The next prime is 78614147. The reversal of 78614131 is 13141687.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13141687 = 13 ⋅1010899.

It is a cyclic number.

It is not a de Polignac number, because 78614131 - 2²³ = 70225523 is a prime.

It is a super-2 number, since 2×78614131² = 12360363185770322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78614093 and 78614102.

It is not an unprimeable number, because it can be changed into a prime (78614231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22821 + ... + 26038.

It is an arithmetic number, because the mean of its divisors is an integer number (19666150).

Almost surely, 2^78614131 is an apocalyptic number.

78614131 is a deficient number, since it is larger than the sum of its proper divisors (50469).

78614131 is a wasteful number, since it uses less digits than its factorization.

78614131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50468.

The product of its digits is 4032, while the sum is 31.

The square root of 78614131 is about 8866.4610189184. The cubic root of 78614131 is about 428.3842936066.

The spelling of 78614131 in words is "seventy-eight million, six hundred fourteen thousand, one hundred thirty-one".