12145693 has 32 divisors (see below), whose sum is σ = 15667200. Its totient is φ = 9180864.

The previous prime is 12145673. The next prime is 12145699. The reversal of 12145693 is 39654121.

12145693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12145693 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 (12145699) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181246 + ... + 181312.

It is an arithmetic number, because the mean of its divisors is an integer number (489600).

It is a vampire number, since it can be written as 1943 ⋅ 6251 (with its own digits).

Almost surely, 2^12145693 is an apocalyptic number.

It is an amenable number.

12145693 is a deficient number, since it is larger than the sum of its proper divisors (3521507).

12145693 is a wasteful number, since it uses less digits than its factorization.

12145693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169.

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

The square root of 12145693 is about 3485.0671442599. The cubic root of 12145693 is about 229.8656619420.

The spelling of 12145693 in words is "twelve million, one hundred forty-five thousand, six hundred ninety-three".