12378575 has 12 divisors (see below), whose sum is σ = 16745208. Its totient is φ = 9002400.

The previous prime is 12378571. The next prime is 12378599. The reversal of 12378575 is 57587321.

It is a happy number.

It is not a de Polignac number, because 12378575 - 2² = 12378571 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12378571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22232 + ... + 22781.

It is an arithmetic number, because the mean of its divisors is an integer number (1395434).

Almost surely, 2^12378575 is an apocalyptic number.

12378575 is a deficient number, since it is larger than the sum of its proper divisors (4366633).

12378575 is a wasteful number, since it uses less digits than its factorization.

12378575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45034 (or 45029 counting only the distinct ones).

The product of its digits is 58800, while the sum is 38.

The square root of 12378575 is about 3518.3199115487. The cubic root of 12378575 is about 231.3255219610.

The spelling of 12378575 in words is "twelve million, three hundred seventy-eight thousand, five hundred seventy-five".