1252455 has 8 divisors (see below), whose sum is σ = 2003952. Its totient is φ = 667968.

The previous prime is 1252451. The next prime is 1252457. The reversal of 1252455 is 5542521.

It is a happy number.

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

It is not a de Polignac number, because 1252455 - 2² = 1252451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41734 + ... + 41763.

It is an arithmetic number, because the mean of its divisors is an integer number (250494).

2^1252455 is an apocalyptic number.

1252455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1252455 is a deficient number, since it is larger than the sum of its proper divisors (751497).

1252455 is an equidigital number, since it uses as much as digits as its factorization.

1252455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83505.

The product of its digits is 2000, while the sum is 24.

The square root of 1252455 is about 1119.1313595821. The cubic root of 1252455 is about 107.7922102125.

Adding to 1252455 its reverse (5542521), we get a palindrome (6794976).

It can be divided in two parts, 125245 and 5, that added together give a triangular number (125250 = T₅₀₀).

The spelling of 1252455 in words is "one million, two hundred fifty-two thousand, four hundred fifty-five".