531681152 has 16 divisors (see below), whose sum is σ = 1059208800. Its totient is φ = 265840512.

The previous prime is 531681131. The next prime is 531681167. The reversal of 531681152 is 251186135.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2076752 + ... + 2077007.

It is an arithmetic number, because the mean of its divisors is an integer number (66200550).

Almost surely, 2^531681152 is an apocalyptic number.

It is an amenable number.

531681152 is a deficient number, since it is larger than the sum of its proper divisors (527527648).

531681152 is an equidigital number, since it uses as much as digits as its factorization.

531681152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4153773 (or 4153761 counting only the distinct ones).

The product of its digits is 7200, while the sum is 32.

The square root of 531681152 is about 23058.2122463993. The cubic root of 531681152 is about 810.1219914826.

It can be divided in two parts, 5316 and 81152, that added together give a palindrome (86468).

The spelling of 531681152 in words is "five hundred thirty-one million, six hundred eighty-one thousand, one hundred fifty-two".