164061791 has 2 divisors, whose sum is σ = 164061792. Its totient is φ = 164061790.

The previous prime is 164061739. The next prime is 164061803. The reversal of 164061791 is 197160461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164061791 - 2²⁶ = 96952927 is a prime.

It is a super-2 number, since 2×164061791² = 53832542532255362, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164060791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82030895 + 82030896.

It is an arithmetic number, because the mean of its divisors is an integer number (82030896).

Almost surely, 2^164061791 is an apocalyptic number.

164061791 is a deficient number, since it is larger than the sum of its proper divisors (1).

164061791 is an equidigital number, since it uses as much as digits as its factorization.

164061791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 164061791 is about 12808.6607808935. The cubic root of 164061791 is about 547.4391038933.

The spelling of 164061791 in words is "one hundred sixty-four million, sixty-one thousand, seven hundred ninety-one".