1253536 has 24 divisors (see below), whose sum is σ = 2528064. Its totient is φ = 611520.

The previous prime is 1253521. The next prime is 1253557. The reversal of 1253536 is 6353521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1253536.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921 + ... + 1831.

It is an arithmetic number, because the mean of its divisors is an integer number (105336).

2^1253536 is an apocalyptic number.

1253536 is a gapful number since it is divisible by the number (16) 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 1253536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1264032).

1253536 is an abundant number, since it is smaller than the sum of its proper divisors (1274528).

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

1253536 is an equidigital number, since it uses as much as digits as its factorization.

1253536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964 (or 956 counting only the distinct ones).

The product of its digits is 2700, while the sum is 25.

The square root of 1253536 is about 1119.6142192738. The cubic root of 1253536 is about 107.8232132881.

The spelling of 1253536 in words is "one million, two hundred fifty-three thousand, five hundred thirty-six".