161346187 has 8 divisors (see below), whose sum is σ = 163217952. Its totient is φ = 159480000.

The previous prime is 161346181. The next prime is 161346221. The reversal of 161346187 is 781643161.

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-161346187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161346181) 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, 88687 + ... + 90487.

It is an arithmetic number, because the mean of its divisors is an integer number (20402244).

Almost surely, 2^161346187 is an apocalyptic number.

161346187 is a deficient number, since it is larger than the sum of its proper divisors (1871765).

161346187 is a wasteful number, since it uses less digits than its factorization.

161346187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789.

The product of its digits is 24192, while the sum is 37.

The square root of 161346187 is about 12702.2118939970. The cubic root of 161346187 is about 544.4018204757.

The spelling of 161346187 in words is "one hundred sixty-one million, three hundred forty-six thousand, one hundred eighty-seven".