161576727 has 8 divisors (see below), whose sum is σ = 232007664. Its totient is φ = 99431808.

The previous prime is 161576717. The next prime is 161576747. The reversal of 161576727 is 727675161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161576727 - 2⁴ = 161576711 is a prime.

It is a super-2 number, since 2×161576727² = 52214077416065058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161576717) 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, 2071458 + ... + 2071535.

It is an arithmetic number, because the mean of its divisors is an integer number (29000958).

Almost surely, 2^161576727 is an apocalyptic number.

161576727 is a deficient number, since it is larger than the sum of its proper divisors (70430937).

161576727 is a wasteful number, since it uses less digits than its factorization.

161576727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143009.

The product of its digits is 123480, while the sum is 42.

The square root of 161576727 is about 12711.2834521145. The cubic root of 161576727 is about 544.6609871547.

The spelling of 161576727 in words is "one hundred sixty-one million, five hundred seventy-six thousand, seven hundred twenty-seven".