12190087 has 16 divisors (see below), whose sum is σ = 15168832. Its totient is φ = 9538560.

The previous prime is 12190081. The next prime is 12190109. The reversal of 12190087 is 78009121.

It is a cyclic number.

It is not a de Polignac number, because 12190087 - 2⁷ = 12189959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12190081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8137 + ... + 9517.

It is an arithmetic number, because the mean of its divisors is an integer number (948052).

Almost surely, 2^12190087 is an apocalyptic number.

12190087 is a deficient number, since it is larger than the sum of its proper divisors (2978745).

12190087 is a wasteful number, since it uses less digits than its factorization.

12190087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 12190087 is about 3491.4305091180. The cubic root of 12190087 is about 230.1453838234.

The spelling of 12190087 in words is "twelve million, one hundred ninety thousand, eighty-seven".