220108157 has 2 divisors, whose sum is σ = 220108158. Its totient is φ = 220108156.

The previous prime is 220108139. The next prime is 220108177. The reversal of 220108157 is 751801022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173949721 + 46158436 = 13189^2 + 6794^2 .

It is a cyclic number.

It is not a de Polignac number, because 220108157 - 2⁶ = 220108093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220108177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110054078 + 110054079.

It is an arithmetic number, because the mean of its divisors is an integer number (110054079).

Almost surely, 2^220108157 is an apocalyptic number.

It is an amenable number.

220108157 is a deficient number, since it is larger than the sum of its proper divisors (1).

220108157 is an equidigital number, since it uses as much as digits as its factorization.

220108157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 220108157 is about 14836.0424979170. The cubic root of 220108157 is about 603.7799852511.

Adding to 220108157 its reverse (751801022), we get a palindrome (971909179).

The spelling of 220108157 in words is "two hundred twenty million, one hundred eight thousand, one hundred fifty-seven".