161042479 has 8 divisors (see below), whose sum is σ = 183632400. Its totient is φ = 139910016.

The previous prime is 161042449. The next prime is 161042503. The reversal of 161042479 is 974240161.

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 161042479 - 2¹¹ = 161040431 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 (161042429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364129 + ... + 364570.

It is an arithmetic number, because the mean of its divisors is an integer number (22954050).

Almost surely, 2^161042479 is an apocalyptic number.

161042479 is a deficient number, since it is larger than the sum of its proper divisors (22589921).

161042479 is a wasteful number, since it uses less digits than its factorization.

161042479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728729.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 161042479 is about 12690.2513371485. The cubic root of 161042479 is about 544.0600232483.

The spelling of 161042479 in words is "one hundred sixty-one million, forty-two thousand, four hundred seventy-nine".