1253387 has 4 divisors (see below), whose sum is σ = 1267560. Its totient is φ = 1239216.

The previous prime is 1253381. The next prime is 1253401. The reversal of 1253387 is 7833521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7833521 = 1117 ⋅7013.

It is a cyclic number.

It is not a de Polignac number, because 1253387 - 2⁶ = 1253323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253381) 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 3 ways as a sum of consecutive naturals, for example, 6953 + ... + 7130.

It is an arithmetic number, because the mean of its divisors is an integer number (316890).

2^1253387 is an apocalyptic number.

1253387 is a deficient number, since it is larger than the sum of its proper divisors (14173).

1253387 is an equidigital number, since it uses as much as digits as its factorization.

1253387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14172.

The product of its digits is 5040, while the sum is 29.

The square root of 1253387 is about 1119.5476765194. The cubic root of 1253387 is about 107.8189410281.

The spelling of 1253387 in words is "one million, two hundred fifty-three thousand, three hundred eighty-seven".