12450189 has 8 divisors (see below), whose sum is σ = 17135872. Its totient is φ = 8032320.

The previous prime is 12450173. The next prime is 12450197. The reversal of 12450189 is 98105421.

It is a happy number.

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

It is not a de Polignac number, because 12450189 - 2⁴ = 12450173 is a prime.

It is a super-2 number, since 2×12450189² = 310014412271442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12450989) 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, 66844 + ... + 67029.

It is an arithmetic number, because the mean of its divisors is an integer number (2141984).

Almost surely, 2^12450189 is an apocalyptic number.

It is an amenable number.

12450189 is a deficient number, since it is larger than the sum of its proper divisors (4685683).

12450189 is a wasteful number, since it uses less digits than its factorization.

12450189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133907.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 12450189 is about 3528.4825350283. The cubic root of 12450189 is about 231.7707617241.

The spelling of 12450189 in words is "twelve million, four hundred fifty thousand, one hundred eighty-nine".