187042427 has 16 divisors (see below), whose sum is σ = 220819200. Its totient is φ = 156189600.

The previous prime is 187042411. The next prime is 187042433. The reversal of 187042427 is 724240781.

It is a happy number.

187042427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 187042427 - 2⁴ = 187042411 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (187042477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27074 + ... + 33272.

It is an arithmetic number, because the mean of its divisors is an integer number (13801200).

Almost surely, 2^187042427 is an apocalyptic number.

187042427 is a deficient number, since it is larger than the sum of its proper divisors (33776773).

187042427 is a wasteful number, since it uses less digits than its factorization.

187042427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6434.

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 187042427 is about 13676.3455279545. The cubic root of 187042427 is about 571.8911506164.

The spelling of 187042427 in words is "one hundred eighty-seven million, forty-two thousand, four hundred twenty-seven".