220995237 has 8 divisors (see below), whose sum is σ = 296468704. Its totient is φ = 146425968.

The previous prime is 220995227. The next prime is 220995259. The reversal of 220995237 is 732599022.

220995237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220995237 - 2⁴ = 220995221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220995195 and 220995204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220995227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225478 + ... + 226455.

It is an arithmetic number, because the mean of its divisors is an integer number (37058588).

Almost surely, 2^220995237 is an apocalyptic number.

It is an amenable number.

220995237 is a deficient number, since it is larger than the sum of its proper divisors (75473467).

220995237 is a wasteful number, since it uses less digits than its factorization.

220995237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452099.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 220995237 is about 14865.9085494295. The cubic root of 220995237 is about 604.5900161569.

The spelling of 220995237 in words is "two hundred twenty million, nine hundred ninety-five thousand, two hundred thirty-seven".