1580461061 has 4 divisors (see below), whose sum is σ = 1596754572. Its totient is φ = 1564167552.

The previous prime is 1580461027. The next prime is 1580461063. The reversal of 1580461061 is 1601640851.

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 385376161 + 1195084900 = 19631^2 + 34570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1580461061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1580461063) 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, 8146610 + ... + 8146803.

It is an arithmetic number, because the mean of its divisors is an integer number (399188643).

Almost surely, 2^1580461061 is an apocalyptic number.

It is an amenable number.

1580461061 is a deficient number, since it is larger than the sum of its proper divisors (16293511).

1580461061 is an equidigital number, since it uses as much as digits as its factorization.

1580461061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16293510.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 1580461061 is about 39755.0130298054. The cubic root of 1580461061 is about 1164.8265654497.

The spelling of 1580461061 in words is "one billion, five hundred eighty million, four hundred sixty-one thousand, sixty-one".