531513042 has 32 divisors (see below), whose sum is σ = 1099014144. Its totient is φ = 171190800.

The previous prime is 531512999. The next prime is 531513043. The reversal of 531513042 is 240315135.

It is a super-2 number, since 2×531513042² = 565012227632187528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531513043) 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, 144567 + ... + 148197.

It is an arithmetic number, because the mean of its divisors is an integer number (34344192).

Almost surely, 2^531513042 is an apocalyptic number.

531513042 is an abundant number, since it is smaller than the sum of its proper divisors (567501102).

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

531513042 is a wasteful number, since it uses less digits than its factorization.

531513042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4454.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 531513042 is about 23054.5666192188. The cubic root of 531513042 is about 810.0365994741.

Adding to 531513042 its reverse (240315135), we get a palindrome (771828177).

The spelling of 531513042 in words is "five hundred thirty-one million, five hundred thirteen thousand, forty-two".