161041647 has 32 divisors (see below), whose sum is σ = 237207040. Its totient is φ = 96577920.

The previous prime is 161041627. The next prime is 161041667. The reversal of 161041647 is 746140161.

It is an interprime number because it is at equal distance from previous prime (161041627) and next prime (161041667).

It is not a de Polignac number, because 161041647 - 2⁶ = 161041583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161041627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330438 + ... + 330924.

It is an arithmetic number, because the mean of its divisors is an integer number (7412720).

Almost surely, 2^161041647 is an apocalyptic number.

161041647 is a deficient number, since it is larger than the sum of its proper divisors (76165393).

161041647 is a wasteful number, since it uses less digits than its factorization.

161041647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 161041647 is about 12690.2185560376. The cubic root of 161041647 is about 544.0590863139.

The spelling of 161041647 in words is "one hundred sixty-one million, forty-one thousand, six hundred forty-seven".