164670157 has 2 divisors, whose sum is σ = 164670158. Its totient is φ = 164670156.

The previous prime is 164670151. The next prime is 164670161. The reversal of 164670157 is 751076461.

164670157 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 can be written as a sum of positive squares in only one way, i.e., 164326761 + 343396 = 12819^2 + 586^2 .

It is a cyclic number.

It is not a de Polignac number, because 164670157 - 2⁷ = 164670029 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164670151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82335078 + 82335079.

It is an arithmetic number, because the mean of its divisors is an integer number (82335079).

Almost surely, 2^164670157 is an apocalyptic number.

It is an amenable number.

164670157 is a deficient number, since it is larger than the sum of its proper divisors (1).

164670157 is an equidigital number, since it uses as much as digits as its factorization.

164670157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 164670157 is about 12832.3870343752. The cubic root of 164670157 is about 548.1149316275.

The spelling of 164670157 in words is "one hundred sixty-four million, six hundred seventy thousand, one hundred fifty-seven".