165547045 has 8 divisors (see below), whose sum is σ = 198840096. Its totient is φ = 132315216.

The previous prime is 165547027. The next prime is 165547061. The reversal of 165547045 is 540745561.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165547045 - 2⁹ = 165546533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165546995 and 165547013.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 9127 + ... + 20356.

It is an arithmetic number, because the mean of its divisors is an integer number (24855012).

Almost surely, 2^165547045 is an apocalyptic number.

It is an amenable number.

165547045 is a deficient number, since it is larger than the sum of its proper divisors (33293051).

165547045 is a wasteful number, since it uses less digits than its factorization.

165547045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30611.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 165547045 is about 12866.5086561973. The cubic root of 165547045 is about 549.0861352813.

The spelling of 165547045 in words is "one hundred sixty-five million, five hundred forty-seven thousand, forty-five".