191300229 has 6 divisors (see below), whose sum is σ = 276322566. Its totient is φ = 127533480.

The previous prime is 191300203. The next prime is 191300251. The reversal of 191300229 is 922003191.

It can be written as a sum of positive squares in only one way, i.e., 191268900 + 31329 = 13830^2 + 177^2 .

It is a de Polignac number, because none of the positive numbers 2^k-191300229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191300429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10627782 + ... + 10627799.

It is an arithmetic number, because the mean of its divisors is an integer number (46053761).

Almost surely, 2^191300229 is an apocalyptic number.

It is an amenable number.

191300229 is a deficient number, since it is larger than the sum of its proper divisors (85022337).

191300229 is a wasteful number, since it uses less digits than its factorization.

191300229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21255587 (or 21255584 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 191300229 is about 13831.1326000440. The cubic root of 191300229 is about 576.1981107453.

The spelling of 191300229 in words is "one hundred ninety-one million, three hundred thousand, two hundred twenty-nine".