79713145 has 8 divisors (see below), whose sum is σ = 96642504. Its totient is φ = 63112704.

The previous prime is 79713131. The next prime is 79713149. The reversal of 79713145 is 54131797.

It can be written as a sum of positive squares in 4 ways, for example, as 218089 + 79495056 = 467^2 + 8916^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79713145 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79713149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81694 + ... + 82663.

It is an arithmetic number, because the mean of its divisors is an integer number (12080313).

Almost surely, 2^79713145 is an apocalyptic number.

It is an amenable number.

79713145 is a deficient number, since it is larger than the sum of its proper divisors (16929359).

79713145 is a wasteful number, since it uses less digits than its factorization.

79713145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164459.

The product of its digits is 26460, while the sum is 37.

The square root of 79713145 is about 8928.2218274413. The cubic root of 79713145 is about 430.3713125880.

The spelling of 79713145 in words is "seventy-nine million, seven hundred thirteen thousand, one hundred forty-five".