12158045 has 8 divisors (see below), whose sum is σ = 15060480. Its totient is φ = 9412560.

The previous prime is 12158039. The next prime is 12158057. The reversal of 12158045 is 54085121.

12158045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-12158045 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39065 + ... + 39374.

It is an arithmetic number, because the mean of its divisors is an integer number (1882560).

Almost surely, 2^12158045 is an apocalyptic number.

It is an amenable number.

12158045 is a deficient number, since it is larger than the sum of its proper divisors (2902435).

12158045 is an equidigital number, since it uses as much as digits as its factorization.

12158045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78475.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 12158045 is about 3486.8388262149. The cubic root of 12158045 is about 229.9435589296.

The spelling of 12158045 in words is "twelve million, one hundred fifty-eight thousand, forty-five".