161703345 has 8 divisors (see below), whose sum is σ = 258725376. Its totient is φ = 86241776.

The previous prime is 161703341. The next prime is 161703379. The reversal of 161703345 is 543307161.

161703345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 161703345 - 2² = 161703341 is a prime.

It is a super-2 number, since 2×161703345² = 52295943568378050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161703341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5390097 + ... + 5390126.

It is an arithmetic number, because the mean of its divisors is an integer number (32340672).

Almost surely, 2^161703345 is an apocalyptic number.

161703345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161703345 is a deficient number, since it is larger than the sum of its proper divisors (97022031).

161703345 is a wasteful number, since it uses less digits than its factorization.

161703345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10780231.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 161703345 is about 12716.2630123791. The cubic root of 161703345 is about 544.8032227347.

The spelling of 161703345 in words is "one hundred sixty-one million, seven hundred three thousand, three hundred forty-five".