213701 has 4 divisors (see below), whose sum is σ = 221100. Its totient is φ = 206304.

The previous prime is 213659. The next prime is 213713. The reversal of 213701 is 107312.

213701 is nontrivially palindromic in base 13.

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 160801 + 52900 = 401^2 + 230^2 .

It is a cyclic number.

It is not a de Polignac number, because 213701 - 2⁶ = 213637 is a prime.

It is a super-3 number, since 3×213701³ = 29277967070133303, which contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213721) 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, 3656 + ... + 3713.

It is an arithmetic number, because the mean of its divisors is an integer number (55275).

2²¹³⁷⁰¹ is an apocalyptic number.

It is an amenable number.

213701 is a deficient number, since it is larger than the sum of its proper divisors (7399).

213701 is an equidigital number, since it uses as much as digits as its factorization.

213701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7398.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 213701 is about 462.2780548544. The cubic root of 213701 is about 59.7863699021.

The spelling of 213701 in words is "two hundred thirteen thousand, seven hundred one".