1325431232 has 28 divisors (see below), whose sum is σ = 2631496896. Its totient is φ = 662376960.

The previous prime is 1325431229. The next prime is 1325431243. The reversal of 1325431232 is 2321345231.

It is a happy number.

It is a super-2 number, since 2×1325431232² = 3513535901522075648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161828 + ... + 169820.

It is an arithmetic number, because the mean of its divisors is an integer number (93982032).

Almost surely, 2^1325431232 is an apocalyptic number.

It is an amenable number.

1325431232 is a deficient number, since it is larger than the sum of its proper divisors (1306065664).

1325431232 is an equidigital number, since it uses as much as digits as its factorization.

1325431232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10596 (or 10586 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 1325431232 is about 36406.4723915954. The cubic root of 1325431232 is about 1098.4637596452.

Adding to 1325431232 its reverse (2321345231), we get a palindrome (3646776463).

The spelling of 1325431232 in words is "one billion, three hundred twenty-five million, four hundred thirty-one thousand, two hundred thirty-two".