220523138 has 8 divisors (see below), whose sum is σ = 360856080. Its totient is φ = 100237780.

The previous prime is 220523137. The next prime is 220523141. The reversal of 220523138 is 831325022.

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

It is not an unprimeable number, because it can be changed into a prime (220523137) 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, 5011868 + ... + 5011911.

It is an arithmetic number, because the mean of its divisors is an integer number (45107010).

Almost surely, 2^220523138 is an apocalyptic number.

220523138 is a deficient number, since it is larger than the sum of its proper divisors (140332942).

220523138 is a wasteful number, since it uses less digits than its factorization.

220523138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10023792.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 220523138 is about 14850.0214814659. The cubic root of 220523138 is about 604.1591926485.

The spelling of 220523138 in words is "two hundred twenty million, five hundred twenty-three thousand, one hundred thirty-eight".