581372413 has 8 divisors (see below), whose sum is σ = 588076632. Its totient is φ = 574706496.

The previous prime is 581372401. The next prime is 581372501. The reversal of 581372413 is 314273185.

It can be written as a sum of positive squares in 4 ways, for example, as 291623929 + 289748484 = 17077^2 + 17022^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 581372413 - 2²⁵ = 547817981 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 (581372713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21531 + ... + 40327.

It is an arithmetic number, because the mean of its divisors is an integer number (73509579).

Almost surely, 2^581372413 is an apocalyptic number.

It is an amenable number.

581372413 is a deficient number, since it is larger than the sum of its proper divisors (6704219).

581372413 is a wasteful number, since it uses less digits than its factorization.

581372413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19151.

The product of its digits is 20160, while the sum is 34.

The square root of 581372413 is about 24111.6654961867. The cubic root of 581372413 is about 834.6123497317.

The spelling of 581372413 in words is "five hundred eighty-one million, three hundred seventy-two thousand, four hundred thirteen".