12802154 has 8 divisors (see below), whose sum is σ = 19393668. Its totient is φ = 6337600.

The previous prime is 12802147. The next prime is 12802171. The reversal of 12802154 is 45120821.

It can be written as a sum of positive squares in 2 ways, for example, as 12794929 + 7225 = 3577^2 + 85^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31487 + ... + 31890.

Almost surely, 2^12802154 is an apocalyptic number.

12802154 is a deficient number, since it is larger than the sum of its proper divisors (6591514).

12802154 is a wasteful number, since it uses less digits than its factorization.

12802154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63480.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 12802154 is about 3578.0097819877. The cubic root of 12802154 is about 233.9345398507.

Adding to 12802154 its reverse (45120821), we get a palindrome (57922975).

The spelling of 12802154 in words is "twelve million, eight hundred two thousand, one hundred fifty-four".