1312470945 has 24 divisors (see below), whose sum is σ = 2359209216. Its totient is φ = 699983856.

The previous prime is 1312470899. The next prime is 1312470977. The reversal of 1312470945 is 5490742131.

It is not a de Polignac number, because 1312470945 - 2¹⁵ = 1312438177 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 538897 + ... + 541326.

It is an arithmetic number, because the mean of its divisors is an integer number (98300384).

Almost surely, 2^1312470945 is an apocalyptic number.

1312470945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1312470945 is a deficient number, since it is larger than the sum of its proper divisors (1046738271).

1312470945 is an equidigital number, since it uses as much as digits as its factorization.

1312470945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080243 (or 1080231 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1312470945 is about 36228.0408661578. The cubic root of 1312470945 is about 1094.8717057423.

The spelling of 1312470945 in words is "one billion, three hundred twelve million, four hundred seventy thousand, nine hundred forty-five".