27144131 has 4 divisors (see below), whose sum is σ = 31021872. Its totient is φ = 23266392.

The previous prime is 27144119. The next prime is 27144133. The reversal of 27144131 is 13144172.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27144131 is a prime.

It is a super-2 number, since 2×27144131² = 1473607695490322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27144097 and 27144106.

It is not an unprimeable number, because it can be changed into a prime (27144133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1938860 + ... + 1938873.

It is an arithmetic number, because the mean of its divisors is an integer number (7755468).

Almost surely, 2^27144131 is an apocalyptic number.

27144131 is a deficient number, since it is larger than the sum of its proper divisors (3877741).

27144131 is an equidigital number, since it uses as much as digits as its factorization.

27144131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877740.

The product of its digits is 672, while the sum is 23.

The square root of 27144131 is about 5210.0029750471. The cubic root of 27144131 is about 300.5328714515.

The spelling of 27144131 in words is "twenty-seven million, one hundred forty-four thousand, one hundred thirty-one".