653140 has 36 divisors (see below), whose sum is σ = 1469916. Its totient is φ = 243712.

The previous prime is 653117. The next prime is 653143. The reversal of 653140 is 41356.

It can be written as a sum of positive squares in 6 ways, for example, as 6724 + 646416 = 82^2 + 804^2 .

It is a super-4 number, since 4×653140⁴ (a number of 24 digits) contains 4444 as substring.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 5724 + ... + 5836.

It is an arithmetic number, because the mean of its divisors is an integer number (40831).

2⁶⁵³¹⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 653140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (734958).

653140 is an abundant number, since it is smaller than the sum of its proper divisors (816776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

653140 is a wasteful number, since it uses less digits than its factorization.

653140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 653140 is about 808.1707740323. The cubic root of 653140 is about 86.7631732328.

Adding to 653140 its reverse (41356), we get a palindrome (694496).

The spelling of 653140 in words is "six hundred fifty-three thousand, one hundred forty".