12145393 has 8 divisors (see below), whose sum is σ = 13384448. Its totient is φ = 10949904.

The previous prime is 12145387. The next prime is 12145417. The reversal of 12145393 is 39354121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12145393 is a prime.

It is a super-2 number, since 2×12145393² = 295021142248898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12145303) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 10305 + ... + 11422.

It is an arithmetic number, because the mean of its divisors is an integer number (1673056).

Almost surely, 2^12145393 is an apocalyptic number.

12145393 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12145393 is a deficient number, since it is larger than the sum of its proper divisors (1239055).

12145393 is a wasteful number, since it uses less digits than its factorization.

12145393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21783.

The product of its digits is 3240, while the sum is 28.

The square root of 12145393 is about 3485.0241032165. The cubic root of 12145393 is about 229.8637693571.

The spelling of 12145393 in words is "twelve million, one hundred forty-five thousand, three hundred ninety-three".