1206253 has 4 divisors (see below), whose sum is σ = 1269760. Its totient is φ = 1142748.

The previous prime is 1206229. The next prime is 1206259. The reversal of 1206253 is 3526021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1206253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 63487 = 1206253 / (1 + 2 + 0 + 6 + 2 + 5 + 3).

It is a Duffinian number.

1206253 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1206253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206259) by changing a digit.

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, 31725 + ... + 31762.

It is an arithmetic number, because the mean of its divisors is an integer number (317440).

2^1206253 is an apocalyptic number.

It is an amenable number.

1206253 is a deficient number, since it is larger than the sum of its proper divisors (63507).

1206253 is an equidigital number, since it uses as much as digits as its factorization.

1206253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63506.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1206253 is about 1098.2954975780. The cubic root of 1206253 is about 106.4501151314.

The spelling of 1206253 in words is "one million, two hundred six thousand, two hundred fifty-three".