161106587 has 4 divisors (see below), whose sum is σ = 161145360. Its totient is φ = 161067816.

The previous prime is 161106577. The next prime is 161106599. The reversal of 161106587 is 785601161.

161106587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 161106587 - 2²⁰ = 160058011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161106577) 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, 12287 + ... + 21752.

It is an arithmetic number, because the mean of its divisors is an integer number (40286340).

Almost surely, 2^161106587 is an apocalyptic number.

161106587 is a deficient number, since it is larger than the sum of its proper divisors (38773).

161106587 is an equidigital number, since it uses as much as digits as its factorization.

161106587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38772.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 161106587 is about 12692.7769617212. The cubic root of 161106587 is about 544.1322070453.

The spelling of 161106587 in words is "one hundred sixty-one million, one hundred six thousand, five hundred eighty-seven".