12099045 has 32 divisors (see below), whose sum is σ = 22498560. Its totient is φ = 5437440.

The previous prime is 12099041. The next prime is 12099047. The reversal of 12099045 is 54099021.

It is a happy number.

It is not a de Polignac number, because 12099045 - 2² = 12099041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12099041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5461 + ... + 7349.

It is an arithmetic number, because the mean of its divisors is an integer number (703080).

Almost surely, 2^12099045 is an apocalyptic number.

12099045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12099045 is a deficient number, since it is larger than the sum of its proper divisors (10399515).

12099045 is a wasteful number, since it uses less digits than its factorization.

12099045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 12099045 is about 3478.3681518781. The cubic root of 12099045 is about 229.5710024709.

The spelling of 12099045 in words is "twelve million, ninety-nine thousand, forty-five".