1312555002 has 32 divisors (see below), whose sum is σ = 2887441344. Its totient is φ = 397741520.

The previous prime is 1312554959. The next prime is 1312555019. The reversal of 1312555002 is 2005552131.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74193 + ... + 90164.

It is an arithmetic number, because the mean of its divisors is an integer number (90232542).

Almost surely, 2^1312555002 is an apocalyptic number.

1312555002 is an abundant number, since it is smaller than the sum of its proper divisors (1574886342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312555002 is a wasteful number, since it uses less digits than its factorization.

1312555002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164395 (or 164373 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1312555002 is about 36229.2009572389. The cubic root of 1312555002 is about 1094.8950788734.

The spelling of 1312555002 in words is "one billion, three hundred twelve million, five hundred fifty-five thousand, two".