164340251 has 2 divisors, whose sum is σ = 164340252. Its totient is φ = 164340250.

The previous prime is 164340223. The next prime is 164340257. The reversal of 164340251 is 152043461.

164340251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164340251 - 2¹⁸ = 164078107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164340251.

It is not a weakly prime, because it can be changed into another prime (164340257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82170125 + 82170126.

It is an arithmetic number, because the mean of its divisors is an integer number (82170126).

Almost surely, 2^164340251 is an apocalyptic number.

164340251 is a deficient number, since it is larger than the sum of its proper divisors (1).

164340251 is an equidigital number, since it uses as much as digits as its factorization.

164340251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 164340251 is about 12819.5261612900. The cubic root of 164340251 is about 547.7486493160.

The spelling of 164340251 in words is "one hundred sixty-four million, three hundred forty thousand, two hundred fifty-one".