12900745 has 16 divisors (see below), whose sum is σ = 18188352. Its totient is φ = 8660160.

The previous prime is 12900733. The next prime is 12900757. The reversal of 12900745 is 54700921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12900733) and next prime (12900757).

It is not a de Polignac number, because 12900745 - 2¹³ = 12892553 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 8307 + ... + 9736.

It is an arithmetic number, because the mean of its divisors is an integer number (1136772).

Almost surely, 2^12900745 is an apocalyptic number.

It is an amenable number.

12900745 is a deficient number, since it is larger than the sum of its proper divisors (5287607).

12900745 is a wasteful number, since it uses less digits than its factorization.

12900745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18072.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 12900745 is about 3591.7607102924. The cubic root of 12900745 is about 234.5335246357.

The spelling of 12900745 in words is "twelve million, nine hundred thousand, seven hundred forty-five".