165010501 has 4 divisors (see below), whose sum is σ = 165151404. Its totient is φ = 164869600.

The previous prime is 165010453. The next prime is 165010513. The reversal of 165010501 is 105010561.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 142826401 + 22184100 = 11951^2 + 4710^2 .

It is a cyclic number.

It is not a de Polignac number, because 165010501 - 2¹¹ = 165008453 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165040501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68680 + ... + 71041.

It is an arithmetic number, because the mean of its divisors is an integer number (41287851).

Almost surely, 2^165010501 is an apocalyptic number.

It is an amenable number.

165010501 is a deficient number, since it is larger than the sum of its proper divisors (140903).

165010501 is a wasteful number, since it uses less digits than its factorization.

165010501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140902.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 165010501 is about 12845.6413230325. The cubic root of 165010501 is about 548.4922905426.

The spelling of 165010501 in words is "one hundred sixty-five million, ten thousand, five hundred one".