27142931 has 8 divisors (see below), whose sum is σ = 28812960. Its totient is φ = 25481088.

The previous prime is 27142919. The next prime is 27142937. The reversal of 27142931 is 13924172.

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 27142931 - 2¹⁸ = 26880787 is a prime.

It is a super-2 number, since 2×27142931² = 1473477406541522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27142894 and 27142903.

It is not an unprimeable number, because it can be changed into a prime (27142937) 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 7 ways as a sum of consecutive naturals, for example, 5645 + ... + 9281.

It is an arithmetic number, because the mean of its divisors is an integer number (3601620).

Almost surely, 2^27142931 is an apocalyptic number.

27142931 is a deficient number, since it is larger than the sum of its proper divisors (1670029).

27142931 is a wasteful number, since it uses less digits than its factorization.

27142931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4093.

The product of its digits is 3024, while the sum is 29.

The square root of 27142931 is about 5209.8878106923. The cubic root of 27142931 is about 300.5284426886.

The spelling of 27142931 in words is "twenty-seven million, one hundred forty-two thousand, nine hundred thirty-one".