161461873 has 8 divisors (see below), whose sum is σ = 166503168. Its totient is φ = 156487584.

The previous prime is 161461871. The next prime is 161461889. The reversal of 161461873 is 378164161.

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

It is a cyclic number.

It is not a de Polignac number, because 161461873 - 2¹ = 161461871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161461871) 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 7 ways as a sum of consecutive naturals, for example, 11836 + ... + 21517.

It is an arithmetic number, because the mean of its divisors is an integer number (20812896).

Almost surely, 2^161461873 is an apocalyptic number.

It is an amenable number.

161461873 is a deficient number, since it is larger than the sum of its proper divisors (5041295).

161461873 is a wasteful number, since it uses less digits than its factorization.

161461873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33503.

The product of its digits is 24192, while the sum is 37.

The square root of 161461873 is about 12706.7648518417. The cubic root of 161461873 is about 544.5319023077.

The spelling of 161461873 in words is "one hundred sixty-one million, four hundred sixty-one thousand, eight hundred seventy-three".