161079247 has 16 divisors (see below), whose sum is σ = 188945152. Its totient is φ = 134447040.

The previous prime is 161079239. The next prime is 161079251. The reversal of 161079247 is 742970161.

It is not a de Polignac number, because 161079247 - 2³ = 161079239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161079047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136972 + ... + 138142.

It is an arithmetic number, because the mean of its divisors is an integer number (11809072).

Almost surely, 2^161079247 is an apocalyptic number.

161079247 is a deficient number, since it is larger than the sum of its proper divisors (27865905).

161079247 is a wasteful number, since it uses less digits than its factorization.

161079247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 161079247 is about 12691.6999255419. The cubic root of 161079247 is about 544.1014253199.

The spelling of 161079247 in words is "one hundred sixty-one million, seventy-nine thousand, two hundred forty-seven".