1375864307 has 4 divisors (see below), whose sum is σ = 1376338896. Its totient is φ = 1375389720.

The previous prime is 1375864297. The next prime is 1375864327. The reversal of 1375864307 is 7034685731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7034685731 = 17 ⋅413805043.

It is a cyclic number.

It is not a de Polignac number, because 1375864307 - 2⁸ = 1375864051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375864327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232919 + ... + 238752.

It is an arithmetic number, because the mean of its divisors is an integer number (344084724).

Almost surely, 2^1375864307 is an apocalyptic number.

1375864307 is a deficient number, since it is larger than the sum of its proper divisors (474589).

1375864307 is an equidigital number, since it uses as much as digits as its factorization.

1375864307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474588.

The product of its (nonzero) digits is 423360, while the sum is 44.

The square root of 1375864307 is about 37092.6449178270. The cubic root of 1375864307 is about 1112.2229906112. Note that the first 3 decimals are identical.

The spelling of 1375864307 in words is "one billion, three hundred seventy-five million, eight hundred sixty-four thousand, three hundred seven".