164187707 has 2 divisors, whose sum is σ = 164187708. Its totient is φ = 164187706.

The previous prime is 164187703. The next prime is 164187743. The reversal of 164187707 is 707781461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164187707 - 2² = 164187703 is a prime.

It is a Chen prime.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (164187701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82093853 + 82093854.

It is an arithmetic number, because the mean of its divisors is an integer number (82093854).

Almost surely, 2^164187707 is an apocalyptic number.

164187707 is a deficient number, since it is larger than the sum of its proper divisors (1).

164187707 is an equidigital number, since it uses as much as digits as its factorization.

164187707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 41.

The square root of 164187707 is about 12813.5751061130. The cubic root of 164187707 is about 547.5791196654.

The spelling of 164187707 in words is "one hundred sixty-four million, one hundred eighty-seven thousand, seven hundred seven".