1252039 has 4 divisors (see below), whose sum is σ = 1273320. Its totient is φ = 1230760.

The previous prime is 1252037. The next prime is 1252049. The reversal of 1252039 is 9302521.

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 1252039 - 2¹ = 1252037 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252037) 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, 10552 + ... + 10669.

It is an arithmetic number, because the mean of its divisors is an integer number (318330).

2^1252039 is an apocalyptic number.

1252039 is a deficient number, since it is larger than the sum of its proper divisors (21281).

1252039 is an equidigital number, since it uses as much as digits as its factorization.

1252039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21280.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1252039 is about 1118.9454857141. The cubic root of 1252039 is about 107.7802745807.

The spelling of 1252039 in words is "one million, two hundred fifty-two thousand, thirty-nine".