2199045 has 8 divisors (see below), whose sum is σ = 3518496. Its totient is φ = 1172816.

The previous prime is 2198981. The next prime is 2199061. The reversal of 2199045 is 5409912.

It is a happy number.

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 2199045 - 2⁶ = 2198981 is a prime.

It is a Curzon number.

2199045 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73287 + ... + 73316.

It is an arithmetic number, because the mean of its divisors is an integer number (439812).

2^2199045 is an apocalyptic number.

It is an amenable number.

2199045 is a deficient number, since it is larger than the sum of its proper divisors (1319451).

2199045 is a wasteful number, since it uses less digits than its factorization.

2199045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146611.

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

The square root of 2199045 is about 1482.9177320405. The cubic root of 2199045 is about 130.0403227973.

The spelling of 2199045 in words is "two million, one hundred ninety-nine thousand, forty-five".