161560147 has 8 divisors (see below), whose sum is σ = 187667552. Its totient is φ = 136209600.

The previous prime is 161560141. The next prime is 161560151. The reversal of 161560147 is 741065161.

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 161560147 - 2¹⁹ = 161035859 is a prime.

It is a super-2 number, since 2×161560147² = 52203362197323218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161560141) 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, 188754 + ... + 189607.

It is an arithmetic number, because the mean of its divisors is an integer number (23458444).

Almost surely, 2^161560147 is an apocalyptic number.

161560147 is a deficient number, since it is larger than the sum of its proper divisors (26107405).

161560147 is an equidigital number, since it uses as much as digits as its factorization.

161560147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378429.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 161560147 is about 12710.6312589108. The cubic root of 161560147 is about 544.6423566084.

The spelling of 161560147 in words is "one hundred sixty-one million, five hundred sixty thousand, one hundred forty-seven".