27161120 has 48 divisors (see below), whose sum is σ = 73338048. Its totient is φ = 9312000.

The previous prime is 27161119. The next prime is 27161129. The reversal of 27161120 is 2116172.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 27161092 and 27161101.

It is not an unprimeable number, because it can be changed into a prime (27161129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11006 + ... + 13245.

It is an arithmetic number, because the mean of its divisors is an integer number (1527876).

Almost surely, 2^27161120 is an apocalyptic number.

27161120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27161120 is an abundant number, since it is smaller than the sum of its proper divisors (46176928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27161120 is a wasteful number, since it uses less digits than its factorization.

27161120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24273 (or 24265 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 27161120 is about 5211.6331413483. The cubic root of 27161120 is about 300.5955576619.

Adding to 27161120 its reverse (2116172), we get a palindrome (29277292).

The spelling of 27161120 in words is "twenty-seven million, one hundred sixty-one thousand, one hundred twenty".