164106251 has 2 divisors, whose sum is σ = 164106252. Its totient is φ = 164106250.

The previous prime is 164106247. The next prime is 164106259. The reversal of 164106251 is 152601461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164106251 - 2² = 164106247 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164106251.

It is not a weakly prime, because it can be changed into another prime (164106259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82053125 + 82053126.

It is an arithmetic number, because the mean of its divisors is an integer number (82053126).

Almost surely, 2^164106251 is an apocalyptic number.

164106251 is a deficient number, since it is larger than the sum of its proper divisors (1).

164106251 is an equidigital number, since it uses as much as digits as its factorization.

164106251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 164106251 is about 12810.3962077681. The cubic root of 164106251 is about 547.4885505970.

The spelling of 164106251 in words is "one hundred sixty-four million, one hundred six thousand, two hundred fifty-one".