1252915 has 4 divisors (see below), whose sum is σ = 1503504. Its totient is φ = 1002328.

The previous prime is 1252913. The next prime is 1252921. The reversal of 1252915 is 5192521.

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 1252915 - 2¹ = 1252913 is a prime.

It is a Duffinian number.

1252915 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252915.

It is not an unprimeable number, because it can be changed into a prime (1252913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125287 + ... + 125296.

It is an arithmetic number, because the mean of its divisors is an integer number (375876).

2^1252915 is an apocalyptic number.

1252915 is a deficient number, since it is larger than the sum of its proper divisors (250589).

1252915 is an equidigital number, since it uses as much as digits as its factorization.

1252915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250588.

The product of its digits is 900, while the sum is 25.

The square root of 1252915 is about 1119.3368572508. The cubic root of 1252915 is about 107.8054051902.

It can be divided in two parts, 12529 and 15, that added together give a square (12544 = 112²).

The spelling of 1252915 in words is "one million, two hundred fifty-two thousand, nine hundred fifteen".