79141121 has 4 divisors (see below), whose sum is σ = 79423044. Its totient is φ = 78859200.

The previous prime is 79141079. The next prime is 79141123. The reversal of 79141121 is 12114197.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29593600 + 49547521 = 5440^2 + 7039^2 .

It is a cyclic number.

It is not a de Polignac number, because 79141121 - 2⁶ = 79141057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79141123) 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, 140540 + ... + 141101.

It is an arithmetic number, because the mean of its divisors is an integer number (19855761).

Almost surely, 2^79141121 is an apocalyptic number.

It is an amenable number.

79141121 is a deficient number, since it is larger than the sum of its proper divisors (281923).

79141121 is a wasteful number, since it uses less digits than its factorization.

79141121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281922.

The product of its digits is 504, while the sum is 26.

The square root of 79141121 is about 8896.1295516646. The cubic root of 79141121 is about 429.3393876349.

The spelling of 79141121 in words is "seventy-nine million, one hundred forty-one thousand, one hundred twenty-one".