79245129 has 4 divisors (see below), whose sum is σ = 105660176. Its totient is φ = 52830084.

The previous prime is 79245119. The next prime is 79245227. The reversal of 79245129 is 92154297.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-79245129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79245119) 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, 13207519 + ... + 13207524.

It is an arithmetic number, because the mean of its divisors is an integer number (26415044).

Almost surely, 2^79245129 is an apocalyptic number.

It is an amenable number.

79245129 is a deficient number, since it is larger than the sum of its proper divisors (26415047).

79245129 is a wasteful number, since it uses less digits than its factorization.

79245129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26415046.

The product of its digits is 45360, while the sum is 39.

The square root of 79245129 is about 8901.9733205621. The cubic root of 79245129 is about 429.5273859129.

The spelling of 79245129 in words is "seventy-nine million, two hundred forty-five thousand, one hundred twenty-nine".