1375166263 has 4 divisors (see below), whose sum is σ = 1377796168. Its totient is φ = 1372536360.

The previous prime is 1375166257. The next prime is 1375166321. The reversal of 1375166263 is 3626615731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1375166263 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 (1375106263) 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, 1314168 + ... + 1315213.

It is an arithmetic number, because the mean of its divisors is an integer number (344449042).

Almost surely, 2^1375166263 is an apocalyptic number.

1375166263 is a deficient number, since it is larger than the sum of its proper divisors (2629905).

1375166263 is an equidigital number, since it uses as much as digits as its factorization.

1375166263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2629904.

The product of its digits is 136080, while the sum is 40.

The square root of 1375166263 is about 37083.2342575456. The cubic root of 1375166263 is about 1112.0348635512.

The spelling of 1375166263 in words is "one billion, three hundred seventy-five million, one hundred sixty-six thousand, two hundred sixty-three".