162426191 has 2 divisors, whose sum is σ = 162426192. Its totient is φ = 162426190.

The previous prime is 162426169. The next prime is 162426217. The reversal of 162426191 is 191624261.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162426191 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162426101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81213095 + 81213096.

It is an arithmetic number, because the mean of its divisors is an integer number (81213096).

Almost surely, 2^162426191 is an apocalyptic number.

162426191 is a deficient number, since it is larger than the sum of its proper divisors (1).

162426191 is an equidigital number, since it uses as much as digits as its factorization.

162426191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 32.

The square root of 162426191 is about 12744.6534280066. The cubic root of 162426191 is about 545.6138088981.

The spelling of 162426191 in words is "one hundred sixty-two million, four hundred twenty-six thousand, one hundred ninety-one".