191412229 has 2 divisors, whose sum is σ = 191412230. Its totient is φ = 191412228.

The previous prime is 191412223. The next prime is 191412269. The reversal of 191412229 is 922214191.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167107329 + 24304900 = 12927^2 + 4930^2 .

It is a cyclic number.

It is not a de Polignac number, because 191412229 - 2⁷ = 191412101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 191412229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (191412223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95706114 + 95706115.

It is an arithmetic number, because the mean of its divisors is an integer number (95706115).

Almost surely, 2^191412229 is an apocalyptic number.

It is an amenable number.

191412229 is a deficient number, since it is larger than the sum of its proper divisors (1).

191412229 is an equidigital number, since it uses as much as digits as its factorization.

191412229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 31.

The square root of 191412229 is about 13835.1808444993. The cubic root of 191412229 is about 576.3105371629.

The spelling of 191412229 in words is "one hundred ninety-one million, four hundred twelve thousand, two hundred twenty-nine".