1252858 has 8 divisors (see below), whose sum is σ = 1944180. Its totient is φ = 604800.

The previous prime is 1252843. The next prime is 1252873. The reversal of 1252858 is 8582521.

It is an interprime number because it is at equal distance from previous prime (1252843) and next prime (1252873).

It can be written as a sum of positive squares in 2 ways, for example, as 1181569 + 71289 = 1087^2 + 267^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10743 + ... + 10858.

2^1252858 is an apocalyptic number.

1252858 is a deficient number, since it is larger than the sum of its proper divisors (691322).

1252858 is a wasteful number, since it uses less digits than its factorization.

1252858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21632.

The product of its digits is 6400, while the sum is 31.

The square root of 1252858 is about 1119.3113954570. The cubic root of 1252858 is about 107.8037703357.

The spelling of 1252858 in words is "one million, two hundred fifty-two thousand, eight hundred fifty-eight".