2142237 has 8 divisors (see below), whose sum is σ = 2875840. Its totient is φ = 1418400.

The previous prime is 2142229. The next prime is 2142241. The reversal of 2142237 is 7322412.

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

It is not a de Polignac number, because 2142237 - 2³ = 2142229 is a prime.

It is a Duffinian number.

2142237 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1912 + ... + 2817.

It is an arithmetic number, because the mean of its divisors is an integer number (359480).

2^2142237 is an apocalyptic number.

It is an amenable number.

2142237 is a deficient number, since it is larger than the sum of its proper divisors (733603).

2142237 is a wasteful number, since it uses less digits than its factorization.

2142237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4883.

The product of its digits is 672, while the sum is 21.

The square root of 2142237 is about 1463.6382749846. The cubic root of 2142237 is about 128.9107609477.

Adding to 2142237 its reverse (7322412), we get a palindrome (9464649).

The spelling of 2142237 in words is "two million, one hundred forty-two thousand, two hundred thirty-seven".