1233100189 has 2 divisors, whose sum is σ = 1233100190. Its totient is φ = 1233100188.

The previous prime is 1233100163. The next prime is 1233100223. The reversal of 1233100189 is 9810013321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1215080164 + 18020025 = 34858^2 + 4245^2 .

It is an emirp because it is prime and its reverse (9810013321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1233100189 - 2⁷ = 1233100061 is a prime.

It is a super-2 number, since 2×1233100189² = 3041072152223671442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233100109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616550094 + 616550095.

It is an arithmetic number, because the mean of its divisors is an integer number (616550095).

Almost surely, 2^1233100189 is an apocalyptic number.

It is an amenable number.

1233100189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233100189 is an equidigital number, since it uses as much as digits as its factorization.

1233100189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1233100189 is about 35115.5263238357. The cubic root of 1233100189 is about 1072.3406961423.

The spelling of 1233100189 in words is "one billion, two hundred thirty-three million, one hundred thousand, one hundred eighty-nine".