161573027 has 8 divisors (see below), whose sum is σ = 201441792. Its totient is φ = 125901000.

The previous prime is 161573021. The next prime is 161573047. The reversal of 161573027 is 720375161.

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 161573027 - 2¹⁶ = 161507491 is a prime.

It is a super-2 number, since 2×161573027² = 52211686107885458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161572984 and 161573002.

It is not an unprimeable number, because it can be changed into a prime (161573021) 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, 1049099 + ... + 1049252.

It is an arithmetic number, because the mean of its divisors is an integer number (25180224).

Almost surely, 2^161573027 is an apocalyptic number.

161573027 is a deficient number, since it is larger than the sum of its proper divisors (39868765).

161573027 is a wasteful number, since it uses less digits than its factorization.

161573027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098369.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 161573027 is about 12711.1379112965. The cubic root of 161573027 is about 544.6568296644.

The spelling of 161573027 in words is "one hundred sixty-one million, five hundred seventy-three thousand, twenty-seven".