1253245 has 16 divisors (see below), whose sum is σ = 1749888. Its totient is φ = 843840.

The previous prime is 1253171. The next prime is 1253249. The reversal of 1253245 is 5423521.

It is a de Polignac number, because none of the positive numbers 2^k-1253245 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1842 + ... + 2428.

It is an arithmetic number, because the mean of its divisors is an integer number (109368).

2^1253245 is an apocalyptic number.

It is an amenable number.

1253245 is a deficient number, since it is larger than the sum of its proper divisors (496643).

1253245 is an equidigital number, since it uses as much as digits as its factorization.

1253245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660.

The product of its digits is 1200, while the sum is 22.

The square root of 1253245 is about 1119.4842562537. The cubic root of 1253245 is about 107.8148691631.

Adding to 1253245 its reverse (5423521), we get a palindrome (6676766).

The spelling of 1253245 in words is "one million, two hundred fifty-three thousand, two hundred forty-five".