247153 has 4 divisors (see below), whose sum is σ = 250020. Its totient is φ = 244288.

The previous prime is 247141. The next prime is 247183. The reversal of 247153 is 351742.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42849 + 204304 = 207^2 + 452^2 .

It is a cyclic number.

It is not a de Polignac number, because 247153 - 2⁹ = 246641 is a prime.

It is a super-2 number, since 2×247153² = 122169210818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247183) 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, 1300 + ... + 1477.

It is an arithmetic number, because the mean of its divisors is an integer number (62505).

2²⁴⁷¹⁵³ is an apocalyptic number.

It is an amenable number.

247153 is a deficient number, since it is larger than the sum of its proper divisors (2867).

247153 is an equidigital number, since it uses as much as digits as its factorization.

247153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2866.

The product of its digits is 840, while the sum is 22.

The square root of 247153 is about 497.1448481077. The cubic root of 247153 is about 62.7560059436.

Adding to 247153 its reverse (351742), we get a palindrome (598895).

It can be divided in two parts, 247 and 153, that added together give a square (400 = 20²).

The spelling of 247153 in words is "two hundred forty-seven thousand, one hundred fifty-three".