12015983 has 8 divisors (see below), whose sum is σ = 13784352. Its totient is φ = 10260576.

The previous prime is 12015977. The next prime is 12016013. The reversal of 12015983 is 38951021.

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

It is a cyclic number.

It is not a de Polignac number, because 12015983 - 2⁴ = 12015967 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 (12015943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1160 + ... + 5037.

It is an arithmetic number, because the mean of its divisors is an integer number (1723044).

Almost surely, 2^12015983 is an apocalyptic number.

12015983 is a deficient number, since it is larger than the sum of its proper divisors (1768369).

12015983 is an equidigital number, since it uses as much as digits as its factorization.

12015983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6481.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 12015983 is about 3466.4077948216. The cubic root of 12015983 is about 229.0444476820.

The spelling of 12015983 in words is "twelve million, fifteen thousand, nine hundred eighty-three".