1253397 has 8 divisors (see below), whose sum is σ = 1702944. Its totient is φ = 819728.

The previous prime is 1253381. The next prime is 1253401. The reversal of 1253397 is 7933521.

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

It is a cyclic number.

It is not a de Polignac number, because 1253397 - 2⁴ = 1253381 is a prime.

1253397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3783 + ... + 4100.

It is an arithmetic number, because the mean of its divisors is an integer number (212868).

2^1253397 is an apocalyptic number.

It is an amenable number.

1253397 is a deficient number, since it is larger than the sum of its proper divisors (449547).

1253397 is an equidigital number, since it uses as much as digits as its factorization.

1253397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7939.

The product of its digits is 5670, while the sum is 30.

The square root of 1253397 is about 1119.5521425999. The cubic root of 1253397 is about 107.8192277675.

The spelling of 1253397 in words is "one million, two hundred fifty-three thousand, three hundred ninety-seven".