1253456 has 10 divisors (see below), whose sum is σ = 2428602. Its totient is φ = 626720.

The previous prime is 1253453. The next prime is 1253471. The reversal of 1253456 is 6543521.

It can be written as a sum of positive squares in only one way, i.e., 1175056 + 78400 = 1084^2 + 280^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39155 + ... + 39186.

2^1253456 is an apocalyptic number.

1253456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1253456 is a deficient number, since it is larger than the sum of its proper divisors (1175146).

1253456 is an equidigital number, since it uses as much as digits as its factorization.

1253456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78349 (or 78343 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 1253456 is about 1119.5784921121. The cubic root of 1253456 is about 107.8209194993.

Adding to 1253456 its reverse (6543521), we get a palindrome (7796977).

The spelling of 1253456 in words is "one million, two hundred fifty-three thousand, four hundred fifty-six".