27402143 has 4 divisors (see below), whose sum is σ = 27586200. Its totient is φ = 27218088.

The previous prime is 27402119. The next prime is 27402149. The reversal of 27402143 is 34120472.

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 27402143 - 2⁸ = 27401887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27402149) 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, 91805 + ... + 92102.

It is an arithmetic number, because the mean of its divisors is an integer number (6896550).

Almost surely, 2^27402143 is an apocalyptic number.

27402143 is a deficient number, since it is larger than the sum of its proper divisors (184057).

27402143 is a wasteful number, since it uses less digits than its factorization.

27402143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184056.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 27402143 is about 5234.7056268715. The cubic root of 27402143 is about 301.4820845457.

The spelling of 27402143 in words is "twenty-seven million, four hundred two thousand, one hundred forty-three".