253144538 has 16 divisors (see below), whose sum is σ = 401172480. Its totient is φ = 119606256.

The previous prime is 253144513. The next prime is 253144547. The reversal of 253144538 is 835441352.

It is a junction number, because it is equal to n+sod(n) for n = 253144498 and 253144507.

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 in 7 ways as a sum of consecutive naturals, for example, 43706 + ... + 49157.

It is an arithmetic number, because the mean of its divisors is an integer number (25073280).

Almost surely, 2^253144538 is an apocalyptic number.

253144538 is a deficient number, since it is larger than the sum of its proper divisors (148027942).

253144538 is a wasteful number, since it uses less digits than its factorization.

253144538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92941.

The product of its digits is 57600, while the sum is 35.

The square root of 253144538 is about 15910.5165849510. The cubic root of 253144538 is about 632.5907741007.

The spelling of 253144538 in words is "two hundred fifty-three million, one hundred forty-four thousand, five hundred thirty-eight".