164734261 has 2 divisors, whose sum is σ = 164734262. Its totient is φ = 164734260.

The previous prime is 164734259. The next prime is 164734289. The reversal of 164734261 is 162437461.

164734261 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 can be written as a sum of positive squares in only one way, i.e., 156725361 + 8008900 = 12519^2 + 2830^2 .

It is a cyclic number.

It is not a de Polignac number, because 164734261 - 2¹ = 164734259 is a prime.

It is a super-2 number, since 2×164734261² = 54274753494432242, which contains 22 as substring.

Together with 164734259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164734561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82367130 + 82367131.

It is an arithmetic number, because the mean of its divisors is an integer number (82367131).

Almost surely, 2^164734261 is an apocalyptic number.

It is an amenable number.

164734261 is a deficient number, since it is larger than the sum of its proper divisors (1).

164734261 is an equidigital number, since it uses as much as digits as its factorization.

164734261 is an evil number, because the sum of its binary digits is even.

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

The square root of 164734261 is about 12834.8845339567. The cubic root of 164734261 is about 548.1860471266.

The spelling of 164734261 in words is "one hundred sixty-four million, seven hundred thirty-four thousand, two hundred sixty-one".