133622389 has 2 divisors, whose sum is σ = 133622390. Its totient is φ = 133622388.

The previous prime is 133622317. The next prime is 133622393. The reversal of 133622389 is 983226331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111999889 + 21622500 = 10583^2 + 4650^2 .

It is a cyclic number.

It is not a de Polignac number, because 133622389 - 2¹⁹ = 133098101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133622309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66811194 + 66811195.

It is an arithmetic number, because the mean of its divisors is an integer number (66811195).

Almost surely, 2^133622389 is an apocalyptic number.

It is an amenable number.

133622389 is a deficient number, since it is larger than the sum of its proper divisors (1).

133622389 is an equidigital number, since it uses as much as digits as its factorization.

133622389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 37.

The square root of 133622389 is about 11559.5150849852. The cubic root of 133622389 is about 511.2418652747.

It can be divided in two parts, 13362 and 2389, that added together give a palindrome (15751).

The spelling of 133622389 in words is "one hundred thirty-three million, six hundred twenty-two thousand, three hundred eighty-nine".