253162140 has 192 divisors, whose sum is σ = 908264448. Its totient is φ = 51148800.

The previous prime is 253162123. The next prime is 253162159. The reversal of 253162140 is 41261352.

It is a self number, because there is not a number n which added to its sum of digits gives 253162140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 170200 + ... + 171680.

It is an arithmetic number, because the mean of its divisors is an integer number (4730544).

Almost surely, 2^253162140 is an apocalyptic number.

253162140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253162140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454132224).

253162140 is an abundant number, since it is smaller than the sum of its proper divisors (655102308).

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

253162140 is a wasteful number, since it uses less digits than its factorization.

253162140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548 (or 1546 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 253162140 is about 15911.0697314794. The cubic root of 253162140 is about 632.6054358230.

The spelling of 253162140 in words is "two hundred fifty-three million, one hundred sixty-two thousand, one hundred forty".