253213144 has 8 divisors (see below), whose sum is σ = 474774660. Its totient is φ = 126606568.

The previous prime is 253213109. The next prime is 253213151. The reversal of 253213144 is 441312352.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15825814 + ... + 15825829.

Almost surely, 2^253213144 is an apocalyptic number.

It is an amenable number.

253213144 is a deficient number, since it is larger than the sum of its proper divisors (221561516).

253213144 is a wasteful number, since it uses less digits than its factorization.

253213144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31651649 (or 31651645 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 253213144 is about 15912.6724342582. The cubic root of 253213144 is about 632.6479161626.

Adding to 253213144 its reverse (441312352), we get a palindrome (694525496).

The spelling of 253213144 in words is "two hundred fifty-three million, two hundred thirteen thousand, one hundred forty-four".