161087245 has 16 divisors (see below), whose sum is σ = 215785152. Its totient is φ = 114428160.

The previous prime is 161087243. The next prime is 161087293. The reversal of 161087245 is 542780161.

It is not a de Polignac number, because 161087245 - 2¹ = 161087243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161087245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161087243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31692 + ... + 36421.

It is an arithmetic number, because the mean of its divisors is an integer number (13486572).

Almost surely, 2^161087245 is an apocalyptic number.

It is an amenable number.

161087245 is a deficient number, since it is larger than the sum of its proper divisors (54697907).

161087245 is a wasteful number, since it uses less digits than its factorization.

161087245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68172.

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

The square root of 161087245 is about 12692.0150094459. The cubic root of 161087245 is about 544.1104305172.

The spelling of 161087245 in words is "one hundred sixty-one million, eighty-seven thousand, two hundred forty-five".