1138920253 has 16 divisors (see below), whose sum is σ = 1248998400. Its totient is φ = 1033862400.

The previous prime is 1138920239. The next prime is 1138920271. The reversal of 1138920253 is 3520298311.

It is not a de Polignac number, because 1138920253 - 2⁵ = 1138920221 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 (1138920053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160423 + ... + 167371.

It is an arithmetic number, because the mean of its divisors is an integer number (78062400).

Almost surely, 2^1138920253 is an apocalyptic number.

It is an amenable number.

1138920253 is a deficient number, since it is larger than the sum of its proper divisors (110078147).

1138920253 is a wasteful number, since it uses less digits than its factorization.

1138920253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7308.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1138920253 is about 33747.8925712407. The cubic root of 1138920253 is about 1044.3140123647.

The spelling of 1138920253 in words is "one billion, one hundred thirty-eight million, nine hundred twenty thousand, two hundred fifty-three".