1321472425 has 36 divisors (see below), whose sum is σ = 2052808716. Its totient is φ = 836438400.

The previous prime is 1321472393. The next prime is 1321472447. The reversal of 1321472425 is 5242741231.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 227979801 + 1093492624 = 15099^2 + 33068^2 .

It is not a de Polignac number, because 1321472425 - 2⁵ = 1321472393 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25566 + ... + 57415.

Almost surely, 2^1321472425 is an apocalyptic number.

It is an amenable number.

1321472425 is a deficient number, since it is larger than the sum of its proper divisors (731336291).

1321472425 is a wasteful number, since it uses less digits than its factorization.

1321472425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83018 (or 83006 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 1321472425 is about 36352.0621835956. The cubic root of 1321472425 is about 1097.3690360070.

The spelling of 1321472425 in words is "one billion, three hundred twenty-one million, four hundred seventy-two thousand, four hundred twenty-five".