1380031775 has 12 divisors (see below), whose sum is σ = 1730469600. Its totient is φ = 1091618880.

The previous prime is 1380031759. The next prime is 1380031799. The reversal of 1380031775 is 5771300831.

It is not a de Polignac number, because 1380031775 - 2⁴ = 1380031759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 307895 + ... + 312344.

It is an arithmetic number, because the mean of its divisors is an integer number (144205800).

Almost surely, 2^1380031775 is an apocalyptic number.

1380031775 is a deficient number, since it is larger than the sum of its proper divisors (350437825).

1380031775 is an equidigital number, since it uses as much as digits as its factorization.

1380031775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620338 (or 620333 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 1380031775 is about 37148.7789166750. The cubic root of 1380031775 is about 1113.3448264458.

The spelling of 1380031775 in words is "one billion, three hundred eighty million, thirty-one thousand, seven hundred seventy-five".