42854137 has 2 divisors, whose sum is σ = 42854138. Its totient is φ = 42854136.

The previous prime is 42854131. The next prime is 42854171. The reversal of 42854137 is 73145824.

It is an a-pointer prime, because the next prime (42854171) can be obtained adding 42854137 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39075001 + 3779136 = 6251^2 + 1944^2 .

It is a cyclic number.

It is not a de Polignac number, because 42854137 - 2¹⁵ = 42821369 is a prime.

It is equal to p_2596327 and since 42854137 and 2596327 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42854131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21427068 + 21427069.

It is an arithmetic number, because the mean of its divisors is an integer number (21427069).

Almost surely, 2^42854137 is an apocalyptic number.

It is an amenable number.

42854137 is a deficient number, since it is larger than the sum of its proper divisors (1).

42854137 is an equidigital number, since it uses as much as digits as its factorization.

42854137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 42854137 is about 6546.3071269228. The cubic root of 42854137 is about 349.9432207214.

The spelling of 42854137 in words is "forty-two million, eight hundred fifty-four thousand, one hundred thirty-seven".