581122542 has 64 divisors (see below), whose sum is σ = 1560513024. Its totient is φ = 139328640.

The previous prime is 581122541. The next prime is 581122579. The reversal of 581122542 is 245221185.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (581122541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42373 + ... + 54384.

It is an arithmetic number, because the mean of its divisors is an integer number (24383016).

Almost surely, 2^581122542 is an apocalyptic number.

581122542 is an abundant number, since it is smaller than the sum of its proper divisors (979390482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

581122542 is a wasteful number, since it uses less digits than its factorization.

581122542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96793.

The product of its digits is 6400, while the sum is 30.

The square root of 581122542 is about 24106.4834017739. The cubic root of 581122542 is about 834.4927618381.

The spelling of 581122542 in words is "five hundred eighty-one million, one hundred twenty-two thousand, five hundred forty-two".