164701951 has 2 divisors, whose sum is σ = 164701952. Its totient is φ = 164701950.

The previous prime is 164701921. The next prime is 164701969. The reversal of 164701951 is 159107461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164701951 - 2¹³ = 164693759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164701921) 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, 82350975 + 82350976.

It is an arithmetic number, because the mean of its divisors is an integer number (82350976).

Almost surely, 2^164701951 is an apocalyptic number.

164701951 is a deficient number, since it is larger than the sum of its proper divisors (1).

164701951 is an equidigital number, since it uses as much as digits as its factorization.

164701951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 164701951 is about 12833.6257932044. The cubic root of 164701951 is about 548.1502054642.

The spelling of 164701951 in words is "one hundred sixty-four million, seven hundred one thousand, nine hundred fifty-one".