1253512 has 32 divisors (see below), whose sum is σ = 2683800. Its totient is φ = 543744.

The previous prime is 1253479. The next prime is 1253513. The reversal of 1253512 is 2153521.

It can be written as a sum of positive squares in 4 ways, for example, as 799236 + 454276 = 894^2 + 674^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1253512.

It is not an unprimeable number, because it can be changed into a prime (1253513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1414 + ... + 2122.

2^1253512 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 1253512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1341900).

1253512 is an abundant number, since it is smaller than the sum of its proper divisors (1430288).

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

1253512 is a wasteful number, since it uses less digits than its factorization.

1253512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 741 counting only the distinct ones).

The product of its digits is 300, while the sum is 19.

The square root of 1253512 is about 1119.6035012450. The cubic root of 1253512 is about 107.8225251617.

Subtracting 1253512 from its reverse (2153521), we obtain a palindrome (900009).

The spelling of 1253512 in words is "one million, two hundred fifty-three thousand, five hundred twelve".