164517131 has 2 divisors, whose sum is σ = 164517132. Its totient is φ = 164517130.

The previous prime is 164517127. The next prime is 164517151. The reversal of 164517131 is 131715461.

It is a happy number.

164517131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164517131 - 2² = 164517127 is a prime.

It is a super-2 number, since 2×164517131² = 54131772784942322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164517094 and 164517103.

It is not a weakly prime, because it can be changed into another prime (164517121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82258565 + 82258566.

It is an arithmetic number, because the mean of its divisors is an integer number (82258566).

Almost surely, 2^164517131 is an apocalyptic number.

164517131 is a deficient number, since it is larger than the sum of its proper divisors (1).

164517131 is an equidigital number, since it uses as much as digits as its factorization.

164517131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 29.

The square root of 164517131 is about 12826.4231569054. The cubic root of 164517131 is about 547.9450934652.

The spelling of 164517131 in words is "one hundred sixty-four million, five hundred seventeen thousand, one hundred thirty-one".