220147189 has 2 divisors, whose sum is σ = 220147190. Its totient is φ = 220147188.

The previous prime is 220147183. The next prime is 220147241. The reversal of 220147189 is 981741022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162766564 + 57380625 = 12758^2 + 7575^2 .

It is a cyclic number.

It is not a de Polignac number, because 220147189 - 2³ = 220147181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220147181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110073594 + 110073595.

It is an arithmetic number, because the mean of its divisors is an integer number (110073595).

Almost surely, 2^220147189 is an apocalyptic number.

It is an amenable number.

220147189 is a deficient number, since it is larger than the sum of its proper divisors (1).

220147189 is an equidigital number, since it uses as much as digits as its factorization.

220147189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 220147189 is about 14837.3578847448. The cubic root of 220147189 is about 603.8156727782.

The spelling of 220147189 in words is "two hundred twenty million, one hundred forty-seven thousand, one hundred eighty-nine".