1257453 has 12 divisors (see below), whose sum is σ = 1875328. Its totient is φ = 811080.

The previous prime is 1257437. The next prime is 1257457. The reversal of 1257453 is 3547521.

It is a happy number.

It is not a de Polignac number, because 1257453 - 2⁴ = 1257437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1257457) 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, 1975 + ... + 2532.

2^1257453 is an apocalyptic number.

It is an amenable number.

1257453 is a deficient number, since it is larger than the sum of its proper divisors (617875).

1257453 is a wasteful number, since it uses less digits than its factorization.

1257453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4544 (or 4541 counting only the distinct ones).

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

The square root of 1257453 is about 1121.3621181403. The cubic root of 1257453 is about 107.9354037587.

The spelling of 1257453 in words is "one million, two hundred fifty-seven thousand, four hundred fifty-three".