164316637 has 2 divisors, whose sum is σ = 164316638. Its totient is φ = 164316636.

The previous prime is 164316599. The next prime is 164316641. The reversal of 164316637 is 736613461.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85266756 + 79049881 = 9234^2 + 8891^2 .

It is a cyclic number.

It is not a de Polignac number, because 164316637 - 2¹¹ = 164314589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164316596 and 164316605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164316037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82158318 + 82158319.

It is an arithmetic number, because the mean of its divisors is an integer number (82158319).

Almost surely, 2^164316637 is an apocalyptic number.

It is an amenable number.

164316637 is a deficient number, since it is larger than the sum of its proper divisors (1).

164316637 is an equidigital number, since it uses as much as digits as its factorization.

164316637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 37.

The square root of 164316637 is about 12818.6051113216. The cubic root of 164316637 is about 547.7224127812.

The spelling of 164316637 in words is "one hundred sixty-four million, three hundred sixteen thousand, six hundred thirty-seven".