161055703 has 4 divisors (see below), whose sum is σ = 161220528. Its totient is φ = 160890880.

The previous prime is 161055701. The next prime is 161055707. The reversal of 161055703 is 307550161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161055703 - 2¹ = 161055701 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 (161055701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80938 + ... + 82903.

It is an arithmetic number, because the mean of its divisors is an integer number (40305132).

Almost surely, 2^161055703 is an apocalyptic number.

161055703 is a deficient number, since it is larger than the sum of its proper divisors (164825).

161055703 is an equidigital number, since it uses as much as digits as its factorization.

161055703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164824.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 161055703 is about 12690.7723563225. The cubic root of 161055703 is about 544.0749146667.

The spelling of 161055703 in words is "one hundred sixty-one million, fifty-five thousand, seven hundred three".