161042746 has 8 divisors (see below), whose sum is σ = 254278080. Its totient is φ = 76283388.

The previous prime is 161042701. The next prime is 161042747. The reversal of 161042746 is 647240161.

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

It is not an unprimeable number, because it can be changed into a prime (161042747) 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 3 ways as a sum of consecutive naturals, for example, 2118946 + ... + 2119021.

It is an arithmetic number, because the mean of its divisors is an integer number (31784760).

Almost surely, 2^161042746 is an apocalyptic number.

161042746 is a deficient number, since it is larger than the sum of its proper divisors (93235334).

161042746 is a wasteful number, since it uses less digits than its factorization.

161042746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4237988.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 161042746 is about 12690.2618570304. The cubic root of 161042746 is about 544.0603239225.

The spelling of 161042746 in words is "one hundred sixty-one million, forty-two thousand, seven hundred forty-six".