12146390 has 8 divisors (see below), whose sum is σ = 21863520. Its totient is φ = 4858552.

The previous prime is 12146383. The next prime is 12146399. The reversal of 12146390 is 9364121.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12146399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607310 + ... + 607329.

It is an arithmetic number, because the mean of its divisors is an integer number (2732940).

Almost surely, 2^12146390 is an apocalyptic number.

12146390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12146390 is a deficient number, since it is larger than the sum of its proper divisors (9717130).

12146390 is a wasteful number, since it uses less digits than its factorization.

12146390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214646.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 12146390 is about 3485.1671408987. The cubic root of 12146390 is about 229.8700589273.

The spelling of 12146390 in words is "twelve million, one hundred forty-six thousand, three hundred ninety".