253231142 has 8 divisors (see below), whose sum is σ = 382838016. Its totient is φ = 125618472.

The previous prime is 253231073. The next prime is 253231151. The reversal of 253231142 is 241132352.

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

It is a super-2 number, since 2×253231142² = 128252022557248328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498233 + ... + 498740.

It is an arithmetic number, because the mean of its divisors is an integer number (47854752).

Almost surely, 2^253231142 is an apocalyptic number.

253231142 is a deficient number, since it is larger than the sum of its proper divisors (129606874).

253231142 is a wasteful number, since it uses less digits than its factorization.

253231142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997102.

The product of its digits is 1440, while the sum is 23.

The square root of 253231142 is about 15913.2379483247. The cubic root of 253231142 is about 632.6629050204.

Adding to 253231142 its reverse (241132352), we get a palindrome (494363494).

The spelling of 253231142 in words is "two hundred fifty-three million, two hundred thirty-one thousand, one hundred forty-two".