161052727 has 4 divisors (see below), whose sum is σ = 175693896. Its totient is φ = 146411560.

The previous prime is 161052707. The next prime is 161052737. The reversal of 161052727 is 727250161.

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 161052727 - 2⁷ = 161052599 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161052707) 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, 7320568 + ... + 7320589.

It is an arithmetic number, because the mean of its divisors is an integer number (43923474).

Almost surely, 2^161052727 is an apocalyptic number.

161052727 is a deficient number, since it is larger than the sum of its proper divisors (14641169).

161052727 is a wasteful number, since it uses less digits than its factorization.

161052727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14641168.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 161052727 is about 12690.6551052339. The cubic root of 161052727 is about 544.0715634930.

The spelling of 161052727 in words is "one hundred sixty-one million, fifty-two thousand, seven hundred twenty-seven".