653144 has 16 divisors (see below), whose sum is σ = 1289400. Its totient is φ = 309312.

The previous prime is 653143. The next prime is 653153. The reversal of 653144 is 441356.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 653144.

It is not an unprimeable number, because it can be changed into a prime (653143) 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, 1997 + ... + 2300.

2⁶⁵³¹⁴⁴ is an apocalyptic number.

It is an amenable number.

653144 is a deficient number, since it is larger than the sum of its proper divisors (636256).

653144 is a wasteful number, since it uses less digits than its factorization.

653144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4322 (or 4318 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 653144 is about 808.1732487530. The cubic root of 653144 is about 86.7633503526.

It can be divided in two parts, 653 and 144, that added together give a palindrome (797).

The spelling of 653144 in words is "six hundred fifty-three thousand, one hundred forty-four".