42690127 has 2 divisors, whose sum is σ = 42690128. Its totient is φ = 42690126.

The previous prime is 42690103. The next prime is 42690133. The reversal of 42690127 is 72109624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42690127 - 2¹⁹ = 42165839 is a prime.

It is a super-2 number, since 2×42690127² = 3644893886552258, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42690827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21345063 + 21345064.

It is an arithmetic number, because the mean of its divisors is an integer number (21345064).

Almost surely, 2^42690127 is an apocalyptic number.

42690127 is a deficient number, since it is larger than the sum of its proper divisors (1).

42690127 is an equidigital number, since it uses as much as digits as its factorization.

42690127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 42690127 is about 6533.7682083159. The cubic root of 42690127 is about 349.4962194374.

The spelling of 42690127 in words is "forty-two million, six hundred ninety thousand, one hundred twenty-seven".