12402453 has 8 divisors (see below), whose sum is σ = 18899008. Its totient is φ = 7087104.

The previous prime is 12402431. The next prime is 12402457. The reversal of 12402453 is 35420421.

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

It is not a de Polignac number, because 12402453 - 2⁶ = 12402389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 590593 = 12402453 / (1 + 2 + 4 + 0 + 2 + 4 + 5 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295276 + ... + 295317.

It is an arithmetic number, because the mean of its divisors is an integer number (2362376).

Almost surely, 2^12402453 is an apocalyptic number.

It is an amenable number.

12402453 is a deficient number, since it is larger than the sum of its proper divisors (6496555).

12402453 is an equidigital number, since it uses as much as digits as its factorization.

12402453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590603.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 12402453 is about 3521.7116577028. The cubic root of 12402453 is about 231.4741670456.

Adding to 12402453 its reverse (35420421), we get a palindrome (47822874).

The spelling of 12402453 in words is "twelve million, four hundred two thousand, four hundred fifty-three".