538131582 has 12 divisors (see below), whose sum is σ = 1165951800. Its totient is φ = 179377188.

The previous prime is 538131571. The next prime is 538131593. The reversal of 538131582 is 285131835.

It is an interprime number because it is at equal distance from previous prime (538131571) and next prime (538131593).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14948082 + ... + 14948117.

It is an arithmetic number, because the mean of its divisors is an integer number (97162650).

Almost surely, 2^538131582 is an apocalyptic number.

538131582 is an abundant number, since it is smaller than the sum of its proper divisors (627820218).

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

538131582 is a wasteful number, since it uses less digits than its factorization.

538131582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29896207 (or 29896204 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 538131582 is about 23197.6632874951. The cubic root of 538131582 is about 813.3850021298.

It can be divided in two parts, 5381 and 31582, that added together give a palindrome (36963).

The spelling of 538131582 in words is "five hundred thirty-eight million, one hundred thirty-one thousand, five hundred eighty-two".