190918229 has 2 divisors, whose sum is σ = 190918230. Its totient is φ = 190918228.

The previous prime is 190918207. The next prime is 190918249. The reversal of 190918229 is 922819091.

190918229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182304004 + 8614225 = 13502^2 + 2935^2 .

It is an emirp because it is prime and its reverse (922819091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190918229 - 2¹² = 190914133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190918249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95459114 + 95459115.

It is an arithmetic number, because the mean of its divisors is an integer number (95459115).

Almost surely, 2^190918229 is an apocalyptic number.

It is an amenable number.

190918229 is a deficient number, since it is larger than the sum of its proper divisors (1).

190918229 is an equidigital number, since it uses as much as digits as its factorization.

190918229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 190918229 is about 13817.3162734302. The cubic root of 190918229 is about 575.8143259648.

The spelling of 190918229 in words is "one hundred ninety million, nine hundred eighteen thousand, two hundred twenty-nine".