1252685 has 12 divisors (see below), whose sum is σ = 1748988. Its totient is φ = 858816.

The previous prime is 1252681. The next prime is 1252711. The reversal of 1252685 is 5862521.

It can be written as a sum of positive squares in 2 ways, for example, as 164836 + 1087849 = 406^2 + 1043^2 .

It is not a de Polignac number, because 1252685 - 2² = 1252681 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252681) 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 11 ways as a sum of consecutive naturals, for example, 2312 + ... + 2801.

It is an arithmetic number, because the mean of its divisors is an integer number (145749).

2^1252685 is an apocalyptic number.

It is an amenable number.

1252685 is a deficient number, since it is larger than the sum of its proper divisors (496303).

1252685 is an equidigital number, since it uses as much as digits as its factorization.

1252685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5132 (or 5125 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 1252685 is about 1119.2341131327. The cubic root of 1252685 is about 107.7988081051.

The spelling of 1252685 in words is "one million, two hundred fifty-two thousand, six hundred eighty-five".