165064469 has 2 divisors, whose sum is σ = 165064470. Its totient is φ = 165064468.

The previous prime is 165064463. The next prime is 165064499. The reversal of 165064469 is 964460561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89548369 + 75516100 = 9463^2 + 8690^2 .

It is a cyclic number.

It is not a de Polignac number, because 165064469 - 2⁸ = 165064213 is a prime.

It is a super-2 number, since 2×165064469² = 54492557852503922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165064463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82532234 + 82532235.

It is an arithmetic number, because the mean of its divisors is an integer number (82532235).

Almost surely, 2^165064469 is an apocalyptic number.

It is an amenable number.

165064469 is a deficient number, since it is larger than the sum of its proper divisors (1).

165064469 is an equidigital number, since it uses as much as digits as its factorization.

165064469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 165064469 is about 12847.7417860105. The cubic root of 165064469 is about 548.5520802838.

The spelling of 165064469 in words is "one hundred sixty-five million, sixty-four thousand, four hundred sixty-nine".