79551142 has 8 divisors (see below), whose sum is σ = 130174632. Its totient is φ = 36159600.

The previous prime is 79551139. The next prime is 79551151. The reversal of 79551142 is 24115597.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 79551098 and 79551107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1807959 + ... + 1808002.

It is an arithmetic number, because the mean of its divisors is an integer number (16271829).

Almost surely, 2^79551142 is an apocalyptic number.

79551142 is a deficient number, since it is larger than the sum of its proper divisors (50623490).

79551142 is a wasteful number, since it uses less digits than its factorization.

79551142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615974.

The product of its digits is 12600, while the sum is 34.

The square root of 79551142 is about 8919.1446899352. The cubic root of 79551142 is about 430.0795634277.

The spelling of 79551142 in words is "seventy-nine million, five hundred fifty-one thousand, one hundred forty-two".