1079402561 has 4 divisors (see below), whose sum is σ = 1079558832. Its totient is φ = 1079246292.

The previous prime is 1079402551. The next prime is 1079402567. The reversal of 1079402561 is 1652049701.

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 cyclic number.

It is not a de Polignac number, because 1079402561 - 2⁶ = 1079402497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1079402567) 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, 67271 + ... + 81756.

It is an arithmetic number, because the mean of its divisors is an integer number (269889708).

Almost surely, 2^1079402561 is an apocalyptic number.

It is an amenable number.

1079402561 is a deficient number, since it is larger than the sum of its proper divisors (156271).

1079402561 is an equidigital number, since it uses as much as digits as its factorization.

1079402561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156270.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1079402561 is about 32854.2624479686. The cubic root of 1079402561 is about 1025.7963467548.

The spelling of 1079402561 in words is "one billion, seventy-nine million, four hundred two thousand, five hundred sixty-one".