162081547 has 4 divisors (see below), whose sum is σ = 167310016. Its totient is φ = 156853080.

The previous prime is 162081541. The next prime is 162081559. The reversal of 162081547 is 745180261.

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

It is a cyclic number.

It is not a de Polignac number, because 162081547 - 2¹⁵ = 162048779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162081541) 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 in 3 ways as a sum of consecutive naturals, for example, 2614188 + ... + 2614249.

It is an arithmetic number, because the mean of its divisors is an integer number (41827504).

Almost surely, 2^162081547 is an apocalyptic number.

162081547 is a deficient number, since it is larger than the sum of its proper divisors (5228469).

162081547 is an equidigital number, since it uses as much as digits as its factorization.

162081547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5228468.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 162081547 is about 12731.1251270263. The cubic root of 162081547 is about 545.2276320943.

The spelling of 162081547 in words is "one hundred sixty-two million, eighty-one thousand, five hundred forty-seven".