12145087 has 8 divisors (see below), whose sum is σ = 12580992. Its totient is φ = 11712000.

The previous prime is 12145069. The next prime is 12145093. The reversal of 12145087 is 78054121.

12145087 is digitally balanced in base 3, 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 cyclic number.

It is not a de Polignac number, because 12145087 - 2⁷ = 12144959 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 (12145057) 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, 11943 + ... + 12919.

It is an arithmetic number, because the mean of its divisors is an integer number (1572624).

Almost surely, 2^12145087 is an apocalyptic number.

12145087 is a deficient number, since it is larger than the sum of its proper divisors (435905).

12145087 is an equidigital number, since it uses as much as digits as its factorization.

12145087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 12145087 is about 3484.9802008046. The cubic root of 12145087 is about 229.8618388883.

The spelling of 12145087 in words is "twelve million, one hundred forty-five thousand, eighty-seven".