1252939 has 4 divisors (see below), whose sum is σ = 1257256. Its totient is φ = 1248624.

The previous prime is 1252921. The next prime is 1252943. The reversal of 1252939 is 9392521.

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 1252939 - 2¹⁵ = 1220171 is a prime.

It is a super-2 number, since 2×1252939² = 3139712275442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252939.

It is not an unprimeable number, because it can be changed into a prime (1252439) 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, 1689 + ... + 2314.

It is an arithmetic number, because the mean of its divisors is an integer number (314314).

2^1252939 is an apocalyptic number.

1252939 is a deficient number, since it is larger than the sum of its proper divisors (4317).

1252939 is an equidigital number, since it uses as much as digits as its factorization.

1252939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4316.

The product of its digits is 4860, while the sum is 31.

The square root of 1252939 is about 1119.3475778327. The cubic root of 1252939 is about 107.8060935352.

The spelling of 1252939 in words is "one million, two hundred fifty-two thousand, nine hundred thirty-nine".