79140041 has 4 divisors (see below), whose sum is σ = 79207572. Its totient is φ = 79072512.

The previous prime is 79140023. The next prime is 79140059. The reversal of 79140041 is 14004197.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (79140023) and next prime (79140059).

It can be written as a sum of positive squares in 2 ways, for example, as 40960000 + 38180041 = 6400^2 + 6179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79140041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79140011) 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, 31976 + ... + 34361.

It is an arithmetic number, because the mean of its divisors is an integer number (19801893).

Almost surely, 2^79140041 is an apocalyptic number.

It is an amenable number.

79140041 is a deficient number, since it is larger than the sum of its proper divisors (67531).

79140041 is a wasteful number, since it uses less digits than its factorization.

79140041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67530.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 79140041 is about 8896.0688509026. The cubic root of 79140041 is about 429.3374346314.

The spelling of 79140041 in words is "seventy-nine million, one hundred forty thousand, forty-one".