27151969 has 16 divisors (see below), whose sum is σ = 31622080. Its totient is φ = 23094720.

The previous prime is 27151921. The next prime is 27152003. The reversal of 27151969 is 96915172.

It is a cyclic number.

It is not a de Polignac number, because 27151969 - 2¹¹ = 27149921 is a prime.

It is a super-2 number, since 2×27151969² = 1474458841153922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27151909) 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 15 ways as a sum of consecutive naturals, for example, 7654 + ... + 10624.

It is an arithmetic number, because the mean of its divisors is an integer number (1976380).

Almost surely, 2^27151969 is an apocalyptic number.

It is an amenable number.

27151969 is a deficient number, since it is larger than the sum of its proper divisors (4470111).

27151969 is a wasteful number, since it uses less digits than its factorization.

27151969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3040.

The product of its digits is 34020, while the sum is 40.

The square root of 27151969 is about 5210.7551276183. The cubic root of 27151969 is about 300.5617954444.

The spelling of 27151969 in words is "twenty-seven million, one hundred fifty-one thousand, nine hundred sixty-nine".