12045454 has 4 divisors (see below), whose sum is σ = 18068184. Its totient is φ = 6022726.

The previous prime is 12045443. The next prime is 12045457. The reversal of 12045454 is 45454021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×12045454² = 290185924132232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3011362 + ... + 3011365.

It is an arithmetic number, because the mean of its divisors is an integer number (4517046).

Almost surely, 2^12045454 is an apocalyptic number.

12045454 is a deficient number, since it is larger than the sum of its proper divisors (6022730).

12045454 is an equidigital number, since it uses as much as digits as its factorization.

12045454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6022729.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 12045454 is about 3470.6561339320. The cubic root of 12045454 is about 229.2315500834.

Adding to 12045454 its reverse (45454021), we get a palindrome (57499475).

The spelling of 12045454 in words is "twelve million, forty-five thousand, four hundred fifty-four".