253511139 has 8 divisors (see below), whose sum is σ = 386302720. Its totient is φ = 144863496.

The previous prime is 253511113. The next prime is 253511143. The reversal of 253511139 is 931115352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253511139 - 2⁵ = 253511107 is a prime.

It is a super-3 number, since 3×253511139³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253511179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6035959 + ... + 6036000.

It is an arithmetic number, because the mean of its divisors is an integer number (48287840).

Almost surely, 2^253511139 is an apocalyptic number.

253511139 is a deficient number, since it is larger than the sum of its proper divisors (132791581).

253511139 is a wasteful number, since it uses less digits than its factorization.

253511139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12071969.

The product of its digits is 4050, while the sum is 30.

The square root of 253511139 is about 15922.0331302255. The cubic root of 253511139 is about 632.8959970288.

The spelling of 253511139 in words is "two hundred fifty-three million, five hundred eleven thousand, one hundred thirty-nine".