12145383 has 24 divisors (see below), whose sum is σ = 18368896. Its totient is φ = 8019000.

The previous prime is 12145379. The next prime is 12145387. The reversal of 12145383 is 38354121.

It is a happy number.

12145383 is a `hidden beast` number, since 121 + 4 + 538 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (12145379) and next prime (12145387).

It is not a de Polignac number, because 12145383 - 2² = 12145379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12145387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36528 + ... + 36858.

Almost surely, 2^12145383 is an apocalyptic number.

12145383 is a deficient number, since it is larger than the sum of its proper divisors (6223513).

12145383 is an equidigital number, since it uses as much as digits as its factorization.

12145383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 485 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 12145383 is about 3485.0226685059. The cubic root of 12145383 is about 229.8637062704.

The spelling of 12145383 in words is "twelve million, one hundred forty-five thousand, three hundred eighty-three".