253138199 has 4 divisors (see below), whose sum is σ = 256342560. Its totient is φ = 249933840.

The previous prime is 253138189. The next prime is 253138213. The reversal of 253138199 is 991831352.

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

It is a cyclic number.

It is not a de Polignac number, because 253138199 - 2⁴ = 253138183 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 (253138189) 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, 1602062 + ... + 1602219.

It is an arithmetic number, because the mean of its divisors is an integer number (64085640).

Almost surely, 2^253138199 is an apocalyptic number.

253138199 is a deficient number, since it is larger than the sum of its proper divisors (3204361).

253138199 is an equidigital number, since it uses as much as digits as its factorization.

253138199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3204360.

The product of its digits is 58320, while the sum is 41.

The square root of 253138199 is about 15910.3173758414. The cubic root of 253138199 is about 632.5854938151.

The spelling of 253138199 in words is "two hundred fifty-three million, one hundred thirty-eight thousand, one hundred ninety-nine".