2137724 has 6 divisors (see below), whose sum is σ = 3741024. Its totient is φ = 1068860.

The previous prime is 2137717. The next prime is 2137727. The reversal of 2137724 is 4277312.

2137724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2137693 and 2137702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267212 + ... + 267219.

It is an arithmetic number, because the mean of its divisors is an integer number (623504).

2^2137724 is an apocalyptic number.

It is an amenable number.

2137724 is a deficient number, since it is larger than the sum of its proper divisors (1603300).

2137724 is a wasteful number, since it uses less digits than its factorization.

2137724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534435 (or 534433 counting only the distinct ones).

The product of its digits is 2352, while the sum is 26.

The square root of 2137724 is about 1462.0957560981. The cubic root of 2137724 is about 128.8201728881.

The spelling of 2137724 in words is "two million, one hundred thirty-seven thousand, seven hundred twenty-four".