27122139 has 24 divisors (see below), whose sum is σ = 44990400. Its totient is φ = 15571440.

The previous prime is 27122119. The next prime is 27122141. The reversal of 27122139 is 93122172.

It is not a de Polignac number, because 27122139 - 2²⁴ = 10344923 is a prime.

It is a super-2 number, since 2×27122139² = 1471220847870642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27122119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5329 + ... + 9090.

It is an arithmetic number, because the mean of its divisors is an integer number (1874600).

Almost surely, 2^27122139 is an apocalyptic number.

27122139 is a deficient number, since it is larger than the sum of its proper divisors (17868261).

27122139 is a wasteful number, since it uses less digits than its factorization.

27122139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14455 (or 14452 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 27122139 is about 5207.8919919676. The cubic root of 27122139 is about 300.4516862571.

It can be divided in two parts, 27122 and 139, that added together give a triangular number (27261 = T₂₃₃).

The spelling of 27122139 in words is "twenty-seven million, one hundred twenty-two thousand, one hundred thirty-nine".