164461237 has 2 divisors, whose sum is σ = 164461238. Its totient is φ = 164461236.

The previous prime is 164461181. The next prime is 164461243. The reversal of 164461237 is 732164461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117483921 + 46977316 = 10839^2 + 6854^2 .

It is a cyclic number.

It is not a de Polignac number, because 164461237 - 2²³ = 156072629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164461837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82230618 + 82230619.

It is an arithmetic number, because the mean of its divisors is an integer number (82230619).

Almost surely, 2^164461237 is an apocalyptic number.

It is an amenable number.

164461237 is a deficient number, since it is larger than the sum of its proper divisors (1).

164461237 is an equidigital number, since it uses as much as digits as its factorization.

164461237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 164461237 is about 12824.2441102780. The cubic root of 164461237 is about 547.8830324264.

The spelling of 164461237 in words is "one hundred sixty-four million, four hundred sixty-one thousand, two hundred thirty-seven".