12145396 has 6 divisors (see below), whose sum is σ = 21254450. Its totient is φ = 6072696.

The previous prime is 12145387. The next prime is 12145417. The reversal of 12145396 is 69354121.

It can be written as a sum of positive squares in only one way, i.e., 11655396 + 490000 = 3414^2 + 700^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1518171 + ... + 1518178.

Almost surely, 2^12145396 is an apocalyptic number.

It is an amenable number.

12145396 is a deficient number, since it is larger than the sum of its proper divisors (9109054).

12145396 is a wasteful number, since it uses less digits than its factorization.

12145396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036353 (or 3036351 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 12145396 is about 3485.0245336296. The cubic root of 12145396 is about 229.8637882831.

The spelling of 12145396 in words is "twelve million, one hundred forty-five thousand, three hundred ninety-six".