253681241 has 8 divisors (see below), whose sum is σ = 286286400. Its totient is φ = 222666640.

The previous prime is 253681223. The next prime is 253681261. The reversal of 253681241 is 142186352.

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

It is not a de Polignac number, because 253681241 - 2⁶ = 253681177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253681198 and 253681207.

It is not an unprimeable number, because it can be changed into a prime (253681261) 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, 397301 + ... + 397938.

It is an arithmetic number, because the mean of its divisors is an integer number (35785800).

Almost surely, 2^253681241 is an apocalyptic number.

It is an amenable number.

253681241 is a deficient number, since it is larger than the sum of its proper divisors (32605159).

253681241 is a wasteful number, since it uses less digits than its factorization.

253681241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795279.

The product of its digits is 11520, while the sum is 32.

The square root of 253681241 is about 15927.3739517850. The cubic root of 253681241 is about 633.0375198110.

The spelling of 253681241 in words is "two hundred fifty-three million, six hundred eighty-one thousand, two hundred forty-one".