17142091 has 2 divisors, whose sum is σ = 17142092. Its totient is φ = 17142090.

The previous prime is 17142053. The next prime is 17142109. The reversal of 17142091 is 19024171.

Together with next prime (17142109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17142091 - 2⁷ = 17141963 is a prime.

It is not a weakly prime, because it can be changed into another prime (17142011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8571045 + 8571046.

It is an arithmetic number, because the mean of its divisors is an integer number (8571046).

Almost surely, 2^17142091 is an apocalyptic number.

17142091 is a deficient number, since it is larger than the sum of its proper divisors (1).

17142091 is an equidigital number, since it uses as much as digits as its factorization.

17142091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 17142091 is about 4140.3008344805. The cubic root of 17142091 is about 257.8425566255.

The spelling of 17142091 in words is "seventeen million, one hundred forty-two thousand, ninety-one".