1253560 has 96 divisors (see below), whose sum is σ = 3638880. Its totient is φ = 380160.

The previous prime is 1253557. The next prime is 1253587. The reversal of 1253560 is 653521.

1253560 = T₂₀ + T₂₁ + ... + T₁₉₅.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33862 + ... + 33898.

It is an arithmetic number, because the mean of its divisors is an integer number (37905).

2^1253560 is an apocalyptic number.

1253560 is a gapful number since it is divisible by the number (10) 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 1253560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1819440).

1253560 is an abundant number, since it is smaller than the sum of its proper divisors (2385320).

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

1253560 is a wasteful number, since it uses less digits than its factorization.

1253560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1253560 is about 1119.6249372000. The cubic root of 1253560 is about 107.8239014057.

The spelling of 1253560 in words is "one million, two hundred fifty-three thousand, five hundred sixty".