532139031 has 16 divisors (see below), whose sum is σ = 788721120. Its totient is φ = 354594240.

The previous prime is 532139011. The next prime is 532139033. The reversal of 532139031 is 130931235.

It is a happy number.

532139031 is a `hidden beast` number, since 532 + 13 + 90 + 31 = 666.

It is not a de Polignac number, because 532139031 - 2⁶ = 532138967 is a prime.

It is a super-2 number, since 2×532139031² = 566343896627237922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 532138986 and 532139004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (532139033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89821 + ... + 95561.

It is an arithmetic number, because the mean of its divisors is an integer number (49295070).

Almost surely, 2^532139031 is an apocalyptic number.

532139031 is a deficient number, since it is larger than the sum of its proper divisors (256582089).

532139031 is a wasteful number, since it uses less digits than its factorization.

532139031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9183 (or 9177 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 532139031 is about 23068.1388716125. The cubic root of 532139031 is about 810.3544813336.

The spelling of 532139031 in words is "five hundred thirty-two million, one hundred thirty-nine thousand, thirty-one".