161048771 has 8 divisors (see below), whose sum is σ = 176026704. Its totient is φ = 146440800.

The previous prime is 161048761. The next prime is 161048773. The reversal of 161048771 is 177840161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161048771 is a prime.

It is a super-2 number, since 2×161048771² = 51873413281220882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161048773) 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, 91580 + ... + 93321.

It is an arithmetic number, because the mean of its divisors is an integer number (22003338).

Almost surely, 2^161048771 is an apocalyptic number.

161048771 is a deficient number, since it is larger than the sum of its proper divisors (14977933).

161048771 is a wasteful number, since it uses less digits than its factorization.

161048771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184981.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 161048771 is about 12690.4992415586. The cubic root of 161048771 is about 544.0671087103.

The spelling of 161048771 in words is "one hundred sixty-one million, forty-eight thousand, seven hundred seventy-one".