191713741 has 2 divisors, whose sum is σ = 191713742. Its totient is φ = 191713740.

The previous prime is 191713729. The next prime is 191713747. The reversal of 191713741 is 147317191.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191711716 + 2025 = 13846^2 + 45^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-191713741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 191713697 and 191713706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (191713747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95856870 + 95856871.

It is an arithmetic number, because the mean of its divisors is an integer number (95856871).

Almost surely, 2^191713741 is an apocalyptic number.

It is an amenable number.

191713741 is a deficient number, since it is larger than the sum of its proper divisors (1).

191713741 is an equidigital number, since it uses as much as digits as its factorization.

191713741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 34.

The square root of 191713741 is about 13846.0731256194. The cubic root of 191713741 is about 576.6129793240.

The spelling of 191713741 in words is "one hundred ninety-one million, seven hundred thirteen thousand, seven hundred forty-one".