1253515 has 4 divisors (see below), whose sum is σ = 1504224. Its totient is φ = 1002808.

The previous prime is 1253513. The next prime is 1253519. The reversal of 1253515 is 5153521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1253515 - 2¹ = 1253513 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 125347 + ... + 125356.

It is an arithmetic number, because the mean of its divisors is an integer number (376056).

2^1253515 is an apocalyptic number.

1253515 is a deficient number, since it is larger than the sum of its proper divisors (250709).

1253515 is an equidigital number, since it uses as much as digits as its factorization.

1253515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250708.

The product of its digits is 750, while the sum is 22.

The square root of 1253515 is about 1119.6048410042. The cubic root of 1253515 is about 107.8226111780.

The spelling of 1253515 in words is "one million, two hundred fifty-three thousand, five hundred fifteen".