253142433 has 12 divisors (see below), whose sum is σ = 369759780. Its totient is φ = 166864896.

The previous prime is 253142431. The next prime is 253142443. The reversal of 253142433 is 334241352.

253142433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 95589729 + 157552704 = 9777^2 + 12552^2 .

It is not a de Polignac number, because 253142433 - 2¹ = 253142431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253142397 and 253142406.

It is not an unprimeable number, because it can be changed into a prime (253142431) 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, 157216 + ... + 158817.

It is an arithmetic number, because the mean of its divisors is an integer number (30813315).

Almost surely, 2^253142433 is an apocalyptic number.

It is an amenable number.

253142433 is a deficient number, since it is larger than the sum of its proper divisors (116617347).

253142433 is a wasteful number, since it uses less digits than its factorization.

253142433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316128 (or 316125 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 253142433 is about 15910.4504335987. The cubic root of 253142433 is about 632.5890206791.

Adding to 253142433 its reverse (334241352), we get a palindrome (587383785).

The spelling of 253142433 in words is "two hundred fifty-three million, one hundred forty-two thousand, four hundred thirty-three".