191411113 has 2 divisors, whose sum is σ = 191411114. Its totient is φ = 191411112.

The previous prime is 191411071. The next prime is 191411141. The reversal of 191411113 is 311114191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157678249 + 33732864 = 12557^2 + 5808^2 .

It is a cyclic number.

It is not a de Polignac number, because 191411113 - 2¹⁷ = 191280041 is a prime.

It is equal to p_10629310 and since 191411113 and 10629310 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (191411153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95705556 + 95705557.

It is an arithmetic number, because the mean of its divisors is an integer number (95705557).

Almost surely, 2^191411113 is an apocalyptic number.

It is an amenable number.

191411113 is a deficient number, since it is larger than the sum of its proper divisors (1).

191411113 is an equidigital number, since it uses as much as digits as its factorization.

191411113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 22.

The square root of 191411113 is about 13835.1405124776. The cubic root of 191411113 is about 576.3094171303.

The spelling of 191411113 in words is "one hundred ninety-one million, four hundred eleven thousand, one hundred thirteen".