72105079 has 2 divisors, whose sum is σ = 72105080. Its totient is φ = 72105078.

The previous prime is 72105073. The next prime is 72105083. The reversal of 72105079 is 97050127.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72105079 - 2³ = 72105071 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72105079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72105071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36052539 + 36052540.

It is an arithmetic number, because the mean of its divisors is an integer number (36052540).

Almost surely, 2^72105079 is an apocalyptic number.

72105079 is a deficient number, since it is larger than the sum of its proper divisors (1).

72105079 is an equidigital number, since it uses as much as digits as its factorization.

72105079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 72105079 is about 8491.4709562007. The cubic root of 72105079 is about 416.2190487617.

The spelling of 72105079 in words is "seventy-two million, one hundred five thousand, seventy-nine".