253135744 has 16 divisors (see below), whose sum is σ = 504294120. Its totient is φ = 126567808.

The previous prime is 253135703. The next prime is 253135747. The reversal of 253135744 is 447531352.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253135747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 988684 + ... + 988939.

Almost surely, 2^253135744 is an apocalyptic number.

It is an amenable number.

253135744 is a deficient number, since it is larger than the sum of its proper divisors (251158376).

253135744 is an equidigital number, since it uses as much as digits as its factorization.

253135744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977637 (or 1977625 counting only the distinct ones).

The product of its digits is 50400, while the sum is 34.

The square root of 253135744 is about 15910.2402244592. The cubic root of 253135744 is about 632.5834488157.

The spelling of 253135744 in words is "two hundred fifty-three million, one hundred thirty-five thousand, seven hundred forty-four".