165239341 has 2 divisors, whose sum is σ = 165239342. Its totient is φ = 165239340.

The previous prime is 165239317. The next prime is 165239377. The reversal of 165239341 is 143932561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164583241 + 656100 = 12829^2 + 810^2 .

It is a cyclic number.

It is not a de Polignac number, because 165239341 - 2⁵ = 165239309 is a prime.

It is a super-2 number, since 2×165239341² = 54608079628228562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165239297 and 165239306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165239381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82619670 + 82619671.

It is an arithmetic number, because the mean of its divisors is an integer number (82619671).

Almost surely, 2^165239341 is an apocalyptic number.

It is an amenable number.

165239341 is a deficient number, since it is larger than the sum of its proper divisors (1).

165239341 is an equidigital number, since it uses as much as digits as its factorization.

165239341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 34.

The square root of 165239341 is about 12854.5455384467. The cubic root of 165239341 is about 548.7457269330.

The spelling of 165239341 in words is "one hundred sixty-five million, two hundred thirty-nine thousand, three hundred forty-one".