161049187 has 16 divisors (see below), whose sum is σ = 183772960. Its totient is φ = 139905792.

The previous prime is 161049181. The next prime is 161049193. The reversal of 161049187 is 781940161.

161049187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161049181) and next prime (161049193).

It is not a de Polignac number, because 161049187 - 2¹⁵ = 161016419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161049181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36703 + ... + 40855.

It is an arithmetic number, because the mean of its divisors is an integer number (11485810).

Almost surely, 2^161049187 is an apocalyptic number.

161049187 is a deficient number, since it is larger than the sum of its proper divisors (22723773).

161049187 is a wasteful number, since it uses less digits than its factorization.

161049187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4342.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 161049187 is about 12690.5156317622. The cubic root of 161049187 is about 544.0675771641.

The spelling of 161049187 in words is "one hundred sixty-one million, forty-nine thousand, one hundred eighty-seven".