247159 has 4 divisors (see below), whose sum is σ = 269640. Its totient is φ = 224680.

The previous prime is 247141. The next prime is 247183. The reversal of 247159 is 951742.

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 247159 - 2⁷ = 247031 is a prime.

It is a super-2 number, since 2×247159² = 122175142562, which contains 22 as substring.

It is a Duffinian number.

247159 is a lucky number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247259) 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, 11224 + ... + 11245.

It is an arithmetic number, because the mean of its divisors is an integer number (67410).

2²⁴⁷¹⁵⁹ is an apocalyptic number.

247159 is a deficient number, since it is larger than the sum of its proper divisors (22481).

247159 is a wasteful number, since it uses less digits than its factorization.

247159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22480.

The product of its digits is 2520, while the sum is 28.

The square root of 247159 is about 497.1508825296. The cubic root of 247159 is about 62.7565137707.

It can be divided in two parts, 247 and 159, that added together give a triangular number (406 = T₂₈).

The spelling of 247159 in words is "two hundred forty-seven thousand, one hundred fifty-nine".