253681107 has 8 divisors (see below), whose sum is σ = 340824000. Its totient is φ = 167829480.

The previous prime is 253681079. The next prime is 253681147. The reversal of 253681107 is 701186352.

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

It is a de Polignac number, because none of the positive numbers 2^k-253681107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253681147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322357 + ... + 323142.

It is an arithmetic number, because the mean of its divisors is an integer number (42603000).

Almost surely, 2^253681107 is an apocalyptic number.

253681107 is a deficient number, since it is larger than the sum of its proper divisors (87142893).

253681107 is a wasteful number, since it uses less digits than its factorization.

253681107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645633.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 253681107 is about 15927.3697451902. The cubic root of 253681107 is about 633.0374083495.

The spelling of 253681107 in words is "two hundred fifty-three million, six hundred eighty-one thousand, one hundred seven".