12145982 has 8 divisors (see below), whose sum is σ = 18250536. Its totient is φ = 6062472.

The previous prime is 12145981. The next prime is 12145993. The reversal of 12145982 is 28954121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12145981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3728 + ... + 6179.

It is an arithmetic number, because the mean of its divisors is an integer number (2281317).

Almost surely, 2^12145982 is an apocalyptic number.

12145982 is a deficient number, since it is larger than the sum of its proper divisors (6104554).

12145982 is an equidigital number, since it uses as much as digits as its factorization.

12145982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10522.

The product of its digits is 5760, while the sum is 32.

The square root of 12145982 is about 3485.1086066291. The cubic root of 12145982 is about 229.8674851026.

The spelling of 12145982 in words is "twelve million, one hundred forty-five thousand, nine hundred eighty-two".