1253755 has 4 divisors (see below), whose sum is σ = 1504512. Its totient is φ = 1003000.

The previous prime is 1253741. The next prime is 1253761. The reversal of 1253755 is 5573521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1253755 - 2⁵ = 1253723 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 125371 + ... + 125380.

It is an arithmetic number, because the mean of its divisors is an integer number (376128).

2^1253755 is an apocalyptic number.

1253755 is a deficient number, since it is larger than the sum of its proper divisors (250757).

1253755 is an equidigital number, since it uses as much as digits as its factorization.

1253755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250756.

The product of its digits is 5250, while the sum is 28.

The square root of 1253755 is about 1119.7120165471. The cubic root of 1253755 is about 107.8294920358.

The spelling of 1253755 in words is "one million, two hundred fifty-three thousand, seven hundred fifty-five".