12402045 has 16 divisors (see below), whose sum is σ = 22048320. Its totient is φ = 6614352.

The previous prime is 12402023. The next prime is 12402059. The reversal of 12402045 is 54020421.

It is not a de Polignac number, because 12402045 - 2⁹ = 12401533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45799 + ... + 46068.

It is an arithmetic number, because the mean of its divisors is an integer number (1378020).

Almost surely, 2^12402045 is an apocalyptic number.

12402045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12402045 is a deficient number, since it is larger than the sum of its proper divisors (9646275).

12402045 is an equidigital number, since it uses as much as digits as its factorization.

12402045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91881 (or 91875 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 12402045 is about 3521.6537308486. The cubic root of 12402045 is about 231.4716287710.

Adding to 12402045 its reverse (54020421), we get a palindrome (66422466).

The spelling of 12402045 in words is "twelve million, four hundred two thousand, forty-five".