1580872481 has 2 divisors, whose sum is σ = 1580872482. Its totient is φ = 1580872480.

The previous prime is 1580872411. The next prime is 1580872493. The reversal of 1580872481 is 1842780851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 796368400 + 784504081 = 28220^2 + 28009^2 .

It is an emirp because it is prime and its reverse (1842780851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1580872481 - 2¹⁸ = 1580610337 is a prime.

It is a super-2 number, since 2×1580872481² = 4998315602366190722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1580872411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 790436240 + 790436241.

It is an arithmetic number, because the mean of its divisors is an integer number (790436241).

Almost surely, 2^1580872481 is an apocalyptic number.

It is an amenable number.

1580872481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1580872481 is an equidigital number, since it uses as much as digits as its factorization.

1580872481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 143360, while the sum is 44.

The square root of 1580872481 is about 39760.1871348715. The cubic root of 1580872481 is about 1164.9276311828.

The spelling of 1580872481 in words is "one billion, five hundred eighty million, eight hundred seventy-two thousand, four hundred eighty-one".