253457343 has 10 divisors (see below), whose sum is σ = 378621584. Its totient is φ = 168971508.

The previous prime is 253457341. The next prime is 253457371. The reversal of 253457343 is 343754352.

It is not a de Polignac number, because 253457343 - 2¹ = 253457341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253457298 and 253457307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253457341) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1564471 + ... + 1564632.

Almost surely, 2^253457343 is an apocalyptic number.

253457343 is a deficient number, since it is larger than the sum of its proper divisors (125164241).

253457343 is an equidigital number, since it uses as much as digits as its factorization.

253457343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3129115 (or 3129106 counting only the distinct ones).

The product of its digits is 151200, while the sum is 36.

The square root of 253457343 is about 15920.3436834762. The cubic root of 253457343 is about 632.8512262391.

The spelling of 253457343 in words is "two hundred fifty-three million, four hundred fifty-seven thousand, three hundred forty-three".