1325242431 has 32 divisors (see below), whose sum is σ = 2027923200. Its totient is φ = 854699040.

The previous prime is 1325242427. The next prime is 1325242433. The reversal of 1325242431 is 1342425231.

1325242431 is a `hidden beast` number, since 132 + 524 + 2 + 4 + 3 + 1 = 666.

It is not a de Polignac number, because 1325242431 - 2² = 1325242427 is a prime.

It is a super-2 number, since 2×1325242431² = 3512535001845579522, 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 = 1325242395 and 1325242404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325242433) 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, 175116 + ... + 182526.

It is an arithmetic number, because the mean of its divisors is an integer number (63372600).

Almost surely, 2^1325242431 is an apocalyptic number.

1325242431 is a deficient number, since it is larger than the sum of its proper divisors (702680769).

1325242431 is a wasteful number, since it uses less digits than its factorization.

1325242431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7636 (or 7630 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 1325242431 is about 36403.8793399824. The cubic root of 1325242431 is about 1098.4116002927.

Adding to 1325242431 its reverse (1342425231), we get a palindrome (2667667662).

The spelling of 1325242431 in words is "one billion, three hundred twenty-five million, two hundred forty-two thousand, four hundred thirty-one".