164747269 has 2 divisors, whose sum is σ = 164747270. Its totient is φ = 164747268.

The previous prime is 164747257. The next prime is 164747279. The reversal of 164747269 is 962747461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159516900 + 5230369 = 12630^2 + 2287^2 .

It is a cyclic number.

It is not a de Polignac number, because 164747269 - 2¹¹ = 164745221 is a prime.

It is a super-2 number, since 2×164747269² = 54283325285916722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164747239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82373634 + 82373635.

It is an arithmetic number, because the mean of its divisors is an integer number (82373635).

Almost surely, 2^164747269 is an apocalyptic number.

It is an amenable number.

164747269 is a deficient number, since it is larger than the sum of its proper divisors (1).

164747269 is an equidigital number, since it uses as much as digits as its factorization.

164747269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 46.

The square root of 164747269 is about 12835.3912678967. The cubic root of 164747269 is about 548.2004756500.

The spelling of 164747269 in words is "one hundred sixty-four million, seven hundred forty-seven thousand, two hundred sixty-nine".