1253547 has 12 divisors (see below), whose sum is σ = 1869504. Its totient is φ = 808560.

The previous prime is 1253521. The next prime is 1253557. The reversal of 1253547 is 7453521.

It is a happy number.

It is not a de Polignac number, because 1253547 - 2¹⁰ = 1252523 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1253547.

It is not an unprimeable number, because it can be changed into a prime (1253557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1968 + ... + 2525.

It is an arithmetic number, because the mean of its divisors is an integer number (155792).

2^1253547 is an apocalyptic number.

1253547 is a deficient number, since it is larger than the sum of its proper divisors (615957).

1253547 is a wasteful number, since it uses less digits than its factorization.

1253547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4530 (or 4527 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 1253547 is about 1119.6191316693. The cubic root of 1253547 is about 107.8235286764.

The spelling of 1253547 in words is "one million, two hundred fifty-three thousand, five hundred forty-seven".