161548327 has 4 divisors (see below), whose sum is σ = 165914536. Its totient is φ = 157182120.

The previous prime is 161548307. The next prime is 161548337. The reversal of 161548327 is 723845161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161548327 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 4366171 = 161548327 / (1 + 6 + 1 + 5 + 4 + 8 + 3 + 2 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161548307) 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, 2183049 + ... + 2183122.

It is an arithmetic number, because the mean of its divisors is an integer number (41478634).

Almost surely, 2^161548327 is an apocalyptic number.

161548327 is a deficient number, since it is larger than the sum of its proper divisors (4366209).

161548327 is an equidigital number, since it uses as much as digits as its factorization.

161548327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4366208.

The product of its digits is 40320, while the sum is 37.

The square root of 161548327 is about 12710.1662853009. The cubic root of 161548327 is about 544.6290739811.

The spelling of 161548327 in words is "one hundred sixty-one million, five hundred forty-eight thousand, three hundred twenty-seven".