2137601 has 4 divisors (see below), whose sum is σ = 2195412. Its totient is φ = 2079792.

The previous prime is 2137571. The next prime is 2137613. The reversal of 2137601 is 1067312.

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 874225 + 1263376 = 935^2 + 1124^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2137601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2137301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28850 + ... + 28923.

It is an arithmetic number, because the mean of its divisors is an integer number (548853).

2^2137601 is an apocalyptic number.

It is an amenable number.

2137601 is a deficient number, since it is larger than the sum of its proper divisors (57811).

2137601 is an equidigital number, since it uses as much as digits as its factorization.

2137601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57810.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 2137601 is about 1462.0536925845. The cubic root of 2137601 is about 128.8177021629.

The spelling of 2137601 in words is "two million, one hundred thirty-seven thousand, six hundred one".