2199137 has 4 divisors (see below), whose sum is σ = 2328516. Its totient is φ = 2069760.

The previous prime is 2199133. The next prime is 2199143. The reversal of 2199137 is 7319912.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1615441 + 583696 = 1271^2 + 764^2 .

It is a cyclic number.

It is not a de Polignac number, because 2199137 - 2² = 2199133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2199133) 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, 64664 + ... + 64697.

It is an arithmetic number, because the mean of its divisors is an integer number (582129).

2^2199137 is an apocalyptic number.

It is an amenable number.

2199137 is a deficient number, since it is larger than the sum of its proper divisors (129379).

2199137 is a wasteful number, since it uses less digits than its factorization.

2199137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129378.

The product of its digits is 3402, while the sum is 32.

The square root of 2199137 is about 1482.9487516432. The cubic root of 2199137 is about 130.0421362425.

The spelling of 2199137 in words is "two million, one hundred ninety-nine thousand, one hundred thirty-seven".