191302093 has 2 divisors, whose sum is σ = 191302094. Its totient is φ = 191302092.

The previous prime is 191302061. The next prime is 191302123. The reversal of 191302093 is 390203191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169052004 + 22250089 = 13002^2 + 4717^2 .

It is a cyclic number.

It is not a de Polignac number, because 191302093 - 2⁵ = 191302061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (191302693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95651046 + 95651047.

It is an arithmetic number, because the mean of its divisors is an integer number (95651047).

Almost surely, 2^191302093 is an apocalyptic number.

It is an amenable number.

191302093 is a deficient number, since it is larger than the sum of its proper divisors (1).

191302093 is an equidigital number, since it uses as much as digits as its factorization.

191302093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 191302093 is about 13831.1999840939. The cubic root of 191302093 is about 576.1999822011.

The spelling of 191302093 in words is "one hundred ninety-one million, three hundred two thousand, ninety-three".