165752101 has 2 divisors, whose sum is σ = 165752102. Its totient is φ = 165752100.

The previous prime is 165752077. The next prime is 165752137. The reversal of 165752101 is 101257561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99980001 + 65772100 = 9999^2 + 8110^2 .

It is a cyclic number.

It is not a de Polignac number, because 165752101 - 2¹³ = 165743909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165752101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165752141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82876050 + 82876051.

It is an arithmetic number, because the mean of its divisors is an integer number (82876051).

Almost surely, 2^165752101 is an apocalyptic number.

It is an amenable number.

165752101 is a deficient number, since it is larger than the sum of its proper divisors (1).

165752101 is an equidigital number, since it uses as much as digits as its factorization.

165752101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 165752101 is about 12874.4747854039. The cubic root of 165752101 is about 549.3127515287.

The spelling of 165752101 in words is "one hundred sixty-five million, seven hundred fifty-two thousand, one hundred one".