27042031 has 4 divisors (see below), whose sum is σ = 27552312. Its totient is φ = 26531752.

The previous prime is 27042023. The next prime is 27042077. The reversal of 27042031 is 13024072.

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

It is a cyclic number.

It is not a de Polignac number, because 27042031 - 2³ = 27042023 is a prime.

It is a super-2 number, since 2×27042031² = 1462542881209922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27042091) 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, 255061 + ... + 255166.

It is an arithmetic number, because the mean of its divisors is an integer number (6888078).

Almost surely, 2^27042031 is an apocalyptic number.

27042031 is a deficient number, since it is larger than the sum of its proper divisors (510281).

27042031 is an equidigital number, since it uses as much as digits as its factorization.

27042031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510280.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 27042031 is about 5200.1952847946. The cubic root of 27042031 is about 300.1555896626.

The spelling of 27042031 in words is "twenty-seven million, forty-two thousand, thirty-one".