161073215 has 16 divisors (see below), whose sum is σ = 209653920. Its totient is φ = 118318080.

The previous prime is 161073193. The next prime is 161073217. The reversal of 161073215 is 512370161.

It is not a de Polignac number, because 161073215 - 2⁸ = 161072959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161073217) 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, 19625 + ... + 26594.

It is an arithmetic number, because the mean of its divisors is an integer number (13103370).

Almost surely, 2^161073215 is an apocalyptic number.

161073215 is a deficient number, since it is larger than the sum of its proper divisors (48580705).

161073215 is a wasteful number, since it uses less digits than its factorization.

161073215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46282.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 161073215 is about 12691.4622876956. The cubic root of 161073215 is about 544.0946335061.

The spelling of 161073215 in words is "one hundred sixty-one million, seventy-three thousand, two hundred fifteen".