531142325 has 12 divisors (see below), whose sum is σ = 752704800. Its totient is φ = 364211760.

The previous prime is 531142303. The next prime is 531142327. The reversal of 531142325 is 523241135.

It is a happy number.

It is not a de Polignac number, because 531142325 - 2²² = 526948021 is a prime.

It is a super-2 number, since 2×531142325² = 564224338812811250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 531142294 and 531142303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531142327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1517375 + ... + 1517724.

It is an arithmetic number, because the mean of its divisors is an integer number (62725400).

Almost surely, 2^531142325 is an apocalyptic number.

It is an amenable number.

531142325 is a deficient number, since it is larger than the sum of its proper divisors (221562475).

531142325 is a wasteful number, since it uses less digits than its factorization.

531142325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3035116 (or 3035111 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 531142325 is about 23046.5252261594. The cubic root of 531142325 is about 809.8482289436.

The spelling of 531142325 in words is "five hundred thirty-one million, one hundred forty-two thousand, three hundred twenty-five".