253845317 has 8 divisors (see below), whose sum is σ = 281616480. Its totient is φ = 226856560.

The previous prime is 253845307. The next prime is 253845331. The reversal of 253845317 is 713548352.

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 253845317 - 2⁸ = 253845061 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 (253845307) 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, 194918 + ... + 196215.

It is an arithmetic number, because the mean of its divisors is an integer number (35202060).

Almost surely, 2^253845317 is an apocalyptic number.

It is an amenable number.

253845317 is a deficient number, since it is larger than the sum of its proper divisors (27771163).

253845317 is a wasteful number, since it uses less digits than its factorization.

253845317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391203.

The product of its digits is 100800, while the sum is 38.

The square root of 253845317 is about 15932.5238741387. The cubic root of 253845317 is about 633.1739691057.

The spelling of 253845317 in words is "two hundred fifty-three million, eight hundred forty-five thousand, three hundred seventeen".