1320574487 has 12 divisors (see below), whose sum is σ = 1367456328. Its totient is φ = 1275253200.

The previous prime is 1320574441. The next prime is 1320574513. The reversal of 1320574487 is 7844750231.

It is not a de Polignac number, because 1320574487 - 2²⁸ = 1052139031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320574687) 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, 562937 + ... + 565277.

It is an arithmetic number, because the mean of its divisors is an integer number (113954694).

Almost surely, 2^1320574487 is an apocalyptic number.

1320574487 is a deficient number, since it is larger than the sum of its proper divisors (46881841).

1320574487 is an equidigital number, since it uses as much as digits as its factorization.

1320574487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990 (or 2959 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 1320574487 is about 36339.7095062688. The cubic root of 1320574487 is about 1097.1204262974.

The spelling of 1320574487 in words is "one billion, three hundred twenty million, five hundred seventy-four thousand, four hundred eighty-seven".