190385233 has 2 divisors, whose sum is σ = 190385234. Its totient is φ = 190385232.

The previous prime is 190385231. The next prime is 190385269. The reversal of 190385233 is 332583091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190246849 + 138384 = 13793^2 + 372^2 .

It is an emirp because it is prime and its reverse (332583091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190385233 - 2¹ = 190385231 is a prime.

It is a super-3 number, since 3×190385233³ (a number of 26 digits) contains 333 as substring.

Together with 190385231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (190385231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95192616 + 95192617.

It is an arithmetic number, because the mean of its divisors is an integer number (95192617).

Almost surely, 2^190385233 is an apocalyptic number.

It is an amenable number.

190385233 is a deficient number, since it is larger than the sum of its proper divisors (1).

190385233 is an equidigital number, since it uses as much as digits as its factorization.

190385233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 190385233 is about 13798.0155457225. The cubic root of 190385233 is about 575.2779832939.

The spelling of 190385233 in words is "one hundred ninety million, three hundred eighty-five thousand, two hundred thirty-three".