253118671 has 4 divisors (see below), whose sum is σ = 272589352. Its totient is φ = 233647992.

The previous prime is 253118669. The next prime is 253118711. The reversal of 253118671 is 176811352.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253118671 - 2¹ = 253118669 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 (253118471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9735321 + ... + 9735346.

It is an arithmetic number, because the mean of its divisors is an integer number (68147338).

Almost surely, 2^253118671 is an apocalyptic number.

253118671 is a deficient number, since it is larger than the sum of its proper divisors (19470681).

253118671 is a wasteful number, since it uses less digits than its factorization.

253118671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19470680.

The product of its digits is 10080, while the sum is 34.

The square root of 253118671 is about 15909.7036741732. The cubic root of 253118671 is about 632.5692267493.

The spelling of 253118671 in words is "two hundred fifty-three million, one hundred eighteen thousand, six hundred seventy-one".