1379253765 has 24 divisors (see below), whose sum is σ = 2306939040. Its totient is φ = 703615264.

The previous prime is 1379253749. The next prime is 1379253787. The reversal of 1379253765 is 5673529731.

It is not a de Polignac number, because 1379253765 - 2⁴ = 1379253749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78975 + ... + 94844.

It is an arithmetic number, because the mean of its divisors is an integer number (96122460).

Almost surely, 2^1379253765 is an apocalyptic number.

1379253765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1379253765 is a deficient number, since it is larger than the sum of its proper divisors (927685275).

1379253765 is a wasteful number, since it uses less digits than its factorization.

1379253765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173873 (or 173850 counting only the distinct ones).

The product of its digits is 1190700, while the sum is 48.

The square root of 1379253765 is about 37138.3058983578. The cubic root of 1379253765 is about 1113.1355664730.

The spelling of 1379253765 in words is "one billion, three hundred seventy-nine million, two hundred fifty-three thousand, seven hundred sixty-five".