1445253 has 4 divisors (see below), whose sum is σ = 1927008. Its totient is φ = 963500.

The previous prime is 1445239. The next prime is 1445261. The reversal of 1445253 is 3525441.

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 not a de Polignac number, because 1445253 - 2⁴ = 1445237 is a prime.

It is a D-number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240873 + ... + 240878.

It is an arithmetic number, because the mean of its divisors is an integer number (481752).

2^1445253 is an apocalyptic number.

It is an amenable number.

1445253 is a deficient number, since it is larger than the sum of its proper divisors (481755).

1445253 is an equidigital number, since it uses as much as digits as its factorization.

1445253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481754.

The product of its digits is 2400, while the sum is 24.

The square root of 1445253 is about 1202.1867575381. The cubic root of 1445253 is about 113.0614696752.

The spelling of 1445253 in words is "one million, four hundred forty-five thousand, two hundred fifty-three".