191255033 has 2 divisors, whose sum is σ = 191255034. Its totient is φ = 191255032.

The previous prime is 191255017. The next prime is 191255101. The reversal of 191255033 is 330552191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140944384 + 50310649 = 11872^2 + 7093^2 .

It is a cyclic number.

It is not a de Polignac number, because 191255033 - 2⁴ = 191255017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 191254987 and 191255005.

It is not a weakly prime, because it can be changed into another prime (191255333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95627516 + 95627517.

It is an arithmetic number, because the mean of its divisors is an integer number (95627517).

Almost surely, 2^191255033 is an apocalyptic number.

It is an amenable number.

191255033 is a deficient number, since it is larger than the sum of its proper divisors (1).

191255033 is an equidigital number, since it uses as much as digits as its factorization.

191255033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 191255033 is about 13829.4986532412. The cubic root of 191255033 is about 576.1527302439.

The spelling of 191255033 in words is "one hundred ninety-one million, two hundred fifty-five thousand, thirty-three".