253870243 has 8 divisors (see below), whose sum is σ = 279805680. Its totient is φ = 228410880.

The previous prime is 253870193. The next prime is 253870249. The reversal of 253870243 is 342078352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253870243 - 2¹³ = 253862051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253870199 and 253870208.

It is not an unprimeable number, because it can be changed into a prime (253870249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117898 + ... + 120031.

It is an arithmetic number, because the mean of its divisors is an integer number (34975710).

Almost surely, 2^253870243 is an apocalyptic number.

253870243 is a deficient number, since it is larger than the sum of its proper divisors (25935437).

253870243 is a wasteful number, since it uses less digits than its factorization.

253870243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238037.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 253870243 is about 15933.3060913296. The cubic root of 253870243 is about 633.1946929833.

The spelling of 253870243 in words is "two hundred fifty-three million, eight hundred seventy thousand, two hundred forty-three".