189733433 has 2 divisors, whose sum is σ = 189733434. Its totient is φ = 189733432.

The previous prime is 189733429. The next prime is 189733459. The reversal of 189733433 is 334337981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188980009 + 753424 = 13747^2 + 868^2 .

It is an emirp because it is prime and its reverse (334337981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189733433 - 2² = 189733429 is a prime.

It is not a weakly prime, because it can be changed into another prime (189733403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94866716 + 94866717.

It is an arithmetic number, because the mean of its divisors is an integer number (94866717).

Almost surely, 2^189733433 is an apocalyptic number.

It is an amenable number.

189733433 is a deficient number, since it is larger than the sum of its proper divisors (1).

189733433 is an equidigital number, since it uses as much as digits as its factorization.

189733433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 41.

The square root of 189733433 is about 13774.3759568265. The cubic root of 189733433 is about 574.6207283362.

The spelling of 189733433 in words is "one hundred eighty-nine million, seven hundred thirty-three thousand, four hundred thirty-three".