12158051 has 4 divisors (see below), whose sum is σ = 12170232. Its totient is φ = 12145872.

The previous prime is 12158039. The next prime is 12158057. The reversal of 12158051 is 15085121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12158051 - 2⁶ = 12157987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12158057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4445 + ... + 6638.

It is an arithmetic number, because the mean of its divisors is an integer number (3042558).

Almost surely, 2^12158051 is an apocalyptic number.

12158051 is a deficient number, since it is larger than the sum of its proper divisors (12181).

12158051 is a wasteful number, since it uses less digits than its factorization.

12158051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12180.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 12158051 is about 3486.8396865930. The cubic root of 12158051 is about 229.9435967553.

The spelling of 12158051 in words is "twelve million, one hundred fifty-eight thousand, fifty-one".