253187 has 4 divisors (see below), whose sum is σ = 276216. Its totient is φ = 230160.

The previous prime is 253159. The next prime is 253229. The reversal of 253187 is 781352.

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 253187 - 2¹⁰ = 252163 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 253187.

It is not an unprimeable number, because it can be changed into a prime (253157) 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, 11498 + ... + 11519.

It is an arithmetic number, because the mean of its divisors is an integer number (69054).

2²⁵³¹⁸⁷ is an apocalyptic number.

253187 is a deficient number, since it is larger than the sum of its proper divisors (23029).

253187 is a wasteful number, since it uses less digits than its factorization.

253187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23028.

The product of its digits is 1680, while the sum is 26.

The square root of 253187 is about 503.1769072603. The cubic root of 253187 is about 63.2626141995.

The spelling of 253187 in words is "two hundred fifty-three thousand, one hundred eighty-seven".