2137801 has 4 divisors (see below), whose sum is σ = 2263572. Its totient is φ = 2012032.

The previous prime is 2137771. The next prime is 2137813. The reversal of 2137801 is 1087312.

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 1863225 + 274576 = 1365^2 + 524^2 .

It is a cyclic number.

It is not a de Polignac number, because 2137801 - 2⁷ = 2137673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2137841) 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, 62860 + ... + 62893.

It is an arithmetic number, because the mean of its divisors is an integer number (565893).

2^2137801 is an apocalyptic number.

It is an amenable number.

2137801 is a deficient number, since it is larger than the sum of its proper divisors (125771).

2137801 is a wasteful number, since it uses less digits than its factorization.

2137801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125770.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 2137801 is about 1462.1220879256. The cubic root of 2137801 is about 128.8217195539.

The spelling of 2137801 in words is "two million, one hundred thirty-seven thousand, eight hundred one".