531226131 has 32 divisors (see below), whose sum is σ = 740620608. Its totient is φ = 338411520.

The previous prime is 531226103. The next prime is 531226133. The reversal of 531226131 is 131622135.

It is not a de Polignac number, because 531226131 - 2⁶ = 531226067 is a prime.

It is a super-2 number, since 2×531226131² = 564402404514458322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531226133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2752371 + ... + 2752563.

It is an arithmetic number, because the mean of its divisors is an integer number (23144394).

Almost surely, 2^531226131 is an apocalyptic number.

531226131 is a deficient number, since it is larger than the sum of its proper divisors (209394477).

531226131 is a wasteful number, since it uses less digits than its factorization.

531226131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

The product of its digits is 1080, while the sum is 24.

The square root of 531226131 is about 23048.3433461062. The cubic root of 531226131 is about 809.8908205229.

Adding to 531226131 its reverse (131622135), we get a palindrome (662848266).

The spelling of 531226131 in words is "five hundred thirty-one million, two hundred twenty-six thousand, one hundred thirty-one".