1253455 has 16 divisors (see below), whose sum is σ = 1751040. Its totient is φ = 843552.

The previous prime is 1253453. The next prime is 1253471. The reversal of 1253455 is 5543521.

It is a cyclic number.

It is not a de Polignac number, because 1253455 - 2¹ = 1253453 is a prime.

It is a super-2 number, since 2×1253455² = 3142298874050, which contains 22 as substring.

1253455 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253453) 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, 1762 + ... + 2368.

It is an arithmetic number, because the mean of its divisors is an integer number (109440).

2^1253455 is an apocalyptic number.

1253455 is a deficient number, since it is larger than the sum of its proper divisors (497585).

1253455 is an equidigital number, since it uses as much as digits as its factorization.

1253455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678.

The product of its digits is 3000, while the sum is 25.

The square root of 1253455 is about 1119.5780455154. The cubic root of 1253455 is about 107.8208908263.

Adding to 1253455 its reverse (5543521), we get a palindrome (6796976).

The spelling of 1253455 in words is "one million, two hundred fifty-three thousand, four hundred fifty-five".