2142297 has 12 divisors (see below), whose sum is σ = 3125824. Its totient is φ = 1413720.

The previous prime is 2142293. The next prime is 2142299. The reversal of 2142297 is 7922412.

It is not a de Polignac number, because 2142297 - 2² = 2142293 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 1 + 4⁶ + 2¹⁵ + 2²¹ + 9² + 7 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2142297.

It is not an unprimeable number, because it can be changed into a prime (2142293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229 + ... + 2082.

2^2142297 is an apocalyptic number.

It is an amenable number.

2142297 is a deficient number, since it is larger than the sum of its proper divisors (983527).

2142297 is a wasteful number, since it uses less digits than its factorization.

2142297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420 (or 2417 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 2142297 is about 1463.6587717088. The cubic root of 2142297 is about 128.9119644519.

The spelling of 2142297 in words is "two million, one hundred forty-two thousand, two hundred ninety-seven".