253775143 has 4 divisors (see below), whose sum is σ = 262526040. Its totient is φ = 245024248.

The previous prime is 253775131. The next prime is 253775149. The reversal of 253775143 is 341577352.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 253775143 - 2¹⁷ = 253644071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253775149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4375405 + ... + 4375462.

It is an arithmetic number, because the mean of its divisors is an integer number (65631510).

Almost surely, 2^253775143 is an apocalyptic number.

253775143 is a deficient number, since it is larger than the sum of its proper divisors (8750897).

253775143 is an equidigital number, since it uses as much as digits as its factorization.

253775143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8750896.

The product of its digits is 88200, while the sum is 37.

The square root of 253775143 is about 15930.3214970697. The cubic root of 253775143 is about 633.1156180259.

The spelling of 253775143 in words is "two hundred fifty-three million, seven hundred seventy-five thousand, one hundred forty-three".