165410545 has 8 divisors (see below), whose sum is σ = 198573120. Its totient is φ = 132274800.

The previous prime is 165410537. The next prime is 165410563. The reversal of 165410545 is 545014561.

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

It is not a de Polignac number, because 165410545 - 2³ = 165410537 is a prime.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11220 + ... + 21370.

It is an arithmetic number, because the mean of its divisors is an integer number (24821640).

Almost surely, 2^165410545 is an apocalyptic number.

It is an amenable number.

165410545 is a deficient number, since it is larger than the sum of its proper divisors (33162575).

165410545 is a wasteful number, since it uses less digits than its factorization.

165410545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13415.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 165410545 is about 12861.2030930236. The cubic root of 165410545 is about 548.9351794675.

The spelling of 165410545 in words is "one hundred sixty-five million, four hundred ten thousand, five hundred forty-five".