165701153 has 4 divisors (see below), whose sum is σ = 165864468. Its totient is φ = 165537840.

The previous prime is 165701119. The next prime is 165701171. The reversal of 165701153 is 351107561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351107561 = 7 ⋅50158223.

It can be written as a sum of positive squares in 2 ways, for example, as 95023504 + 70677649 = 9748^2 + 8407^2 .

It is a cyclic number.

It is not a de Polignac number, because 165701153 - 2¹² = 165697057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165701183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80126 + ... + 82167.

It is an arithmetic number, because the mean of its divisors is an integer number (41466117).

Almost surely, 2^165701153 is an apocalyptic number.

It is an amenable number.

165701153 is a deficient number, since it is larger than the sum of its proper divisors (163315).

165701153 is a wasteful number, since it uses less digits than its factorization.

165701153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163314.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 165701153 is about 12872.4959895119. The cubic root of 165701153 is about 549.2564641497.

The spelling of 165701153 in words is "one hundred sixty-five million, seven hundred one thousand, one hundred fifty-three".