12345451 has 8 divisors (see below), whose sum is σ = 13147920. Its totient is φ = 11551488.

The previous prime is 12345439. The next prime is 12345479. The reversal of 12345451 is 15454321.

It is a happy number.

12345451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12345451 - 2⁵ = 12345419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12345491) 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, 1015 + ... + 5071.

It is an arithmetic number, because the mean of its divisors is an integer number (1643490).

Almost surely, 2^12345451 is an apocalyptic number.

12345451 is a deficient number, since it is larger than the sum of its proper divisors (802469).

12345451 is a wasteful number, since it uses less digits than its factorization.

12345451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4253.

The product of its digits is 2400, while the sum is 25.

The square root of 12345451 is about 3513.6093977561. The cubic root of 12345451 is about 231.1190019204.

Adding to 12345451 its reverse (15454321), we get a palindrome (27799772).

The spelling of 12345451 in words is "twelve million, three hundred forty-five thousand, four hundred fifty-one".