1531799982 has 24 divisors (see below), whose sum is σ = 3324674496. Its totient is φ = 509711616.

The previous prime is 1531799947. The next prime is 1531800019. The reversal of 1531799982 is 2899971351.

It is a super-2 number, since 2×1531799982² = 4692822369710400648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63358 + ... + 84129.

It is an arithmetic number, because the mean of its divisors is an integer number (138528104).

Almost surely, 2^1531799982 is an apocalyptic number.

1531799982 is an abundant number, since it is smaller than the sum of its proper divisors (1792874514).

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

1531799982 is a wasteful number, since it uses less digits than its factorization.

1531799982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148072 (or 148069 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 54.

The square root of 1531799982 is about 39138.2163875668. The cubic root of 1531799982 is about 1152.7470514339.

The spelling of 1531799982 in words is "one billion, five hundred thirty-one million, seven hundred ninety-nine thousand, nine hundred eighty-two".