220137 has 4 divisors (see below), whose sum is σ = 293520. Its totient is φ = 146756.

The previous prime is 220123. The next prime is 220141. The reversal of 220137 is 731022.

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 not a de Polignac number, because 220137 - 2⁷ = 220009 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (220147) 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, 36687 + ... + 36692.

It is an arithmetic number, because the mean of its divisors is an integer number (73380).

2²²⁰¹³⁷ is an apocalyptic number.

It is an amenable number.

220137 is a deficient number, since it is larger than the sum of its proper divisors (73383).

220137 is an equidigital number, since it uses as much as digits as its factorization.

220137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73382.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 220137 is about 469.1875957440. The cubic root of 220137 is about 60.3806357234.

Adding to 220137 its reverse (731022), we get a palindrome (951159).

The spelling of 220137 in words is "two hundred twenty thousand, one hundred thirty-seven".