253351144 has 8 divisors (see below), whose sum is σ = 475033410. Its totient is φ = 126675568.

The previous prime is 253351139. The next prime is 253351151. The reversal of 253351144 is 441153352.

It can be written as a sum of positive squares in only one way, i.e., 250588900 + 2762244 = 15830^2 + 1662^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×253351144² = 128373604332217472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15834439 + ... + 15834454.

Almost surely, 2^253351144 is an apocalyptic number.

It is an amenable number.

253351144 is a deficient number, since it is larger than the sum of its proper divisors (221682266).

253351144 is a wasteful number, since it uses less digits than its factorization.

253351144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31668899 (or 31668895 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 253351144 is about 15917.0080103014. The cubic root of 253351144 is about 632.7628253593.

The spelling of 253351144 in words is "two hundred fifty-three million, three hundred fifty-one thousand, one hundred forty-four".