253149903 has 12 divisors (see below), whose sum is σ = 378270360. Its totient is φ = 162946896.

The previous prime is 253149899. The next prime is 253149913. The reversal of 253149903 is 309941352.

It is a happy number.

It is not a de Polignac number, because 253149903 - 2² = 253149899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253149913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 484701 + ... + 485222.

It is an arithmetic number, because the mean of its divisors is an integer number (31522530).

Almost surely, 2^253149903 is an apocalyptic number.

253149903 is a deficient number, since it is larger than the sum of its proper divisors (125120457).

253149903 is a wasteful number, since it uses less digits than its factorization.

253149903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969958 (or 969955 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 253149903 is about 15910.6851832346. The cubic root of 253149903 is about 632.5952429910.

The spelling of 253149903 in words is "two hundred fifty-three million, one hundred forty-nine thousand, nine hundred three".