1320651425 has 12 divisors (see below), whose sum is σ = 1638131760. Its totient is φ = 1056183120.

The previous prime is 1320651413. The next prime is 1320651427. The reversal of 1320651425 is 5241560231.

It is not a de Polignac number, because 1320651425 - 2⁸ = 1320651169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320651427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97094 + ... + 109856.

It is an arithmetic number, because the mean of its divisors is an integer number (136510980).

Almost surely, 2^1320651425 is an apocalyptic number.

It is an amenable number.

1320651425 is a deficient number, since it is larger than the sum of its proper divisors (317480335).

1320651425 is a wasteful number, since it uses less digits than its factorization.

1320651425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16912 (or 16907 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1320651425 is about 36340.7680848933. The cubic root of 1320651425 is about 1097.1417323308.

The spelling of 1320651425 in words is "one billion, three hundred twenty million, six hundred fifty-one thousand, four hundred twenty-five".