1251253 has 8 divisors (see below), whose sum is σ = 1304576. Its totient is φ = 1198800.

The previous prime is 1251247. The next prime is 1251259. The reversal of 1251253 is 3521521.

It is an interprime number because it is at equal distance from previous prime (1251247) and next prime (1251259).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1251253 is a prime.

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 1251253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5500 + ... + 5722.

It is an arithmetic number, because the mean of its divisors is an integer number (163072).

2^1251253 is an apocalyptic number.

It is an amenable number.

1251253 is a deficient number, since it is larger than the sum of its proper divisors (53323).

1251253 is a wasteful number, since it uses less digits than its factorization.

1251253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435.

The product of its digits is 300, while the sum is 19.

The square root of 1251253 is about 1118.5942070295. The cubic root of 1251253 is about 107.7577159039.

Adding to 1251253 its reverse (3521521), we get a palindrome (4772774).

It can be divided in two parts, 125 and 1253, that added together give a triangular number (1378 = T₅₂).

The spelling of 1251253 in words is "one million, two hundred fifty-one thousand, two hundred fifty-three".