2142937 has 4 divisors (see below), whose sum is σ = 2212096. Its totient is φ = 2073780.

The previous prime is 2142923. The next prime is 2142941. The reversal of 2142937 is 7392412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2142937 is a prime.

It is a Duffinian number.

2142937 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2142967) 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, 34533 + ... + 34594.

It is an arithmetic number, because the mean of its divisors is an integer number (553024).

2^2142937 is an apocalyptic number.

It is an amenable number.

2142937 is a deficient number, since it is larger than the sum of its proper divisors (69159).

2142937 is an equidigital number, since it uses as much as digits as its factorization.

2142937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69158.

The product of its digits is 3024, while the sum is 28.

The square root of 2142937 is about 1463.8773855757. The cubic root of 2142937 is about 128.9248004317.

It can be divided in two parts, 214293 and 7, that multiplied together give a palindrome (1500051).

The spelling of 2142937 in words is "two million, one hundred forty-two thousand, nine hundred thirty-seven".