84138241 has 4 divisors (see below), whose sum is σ = 91787184. Its totient is φ = 76489300.

The previous prime is 84138227. The next prime is 84138281. The reversal of 84138241 is 14283148.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84138241 - 2¹³ = 84130049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84138211) 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, 3824455 + ... + 3824476.

It is an arithmetic number, because the mean of its divisors is an integer number (22946796).

Almost surely, 2^84138241 is an apocalyptic number.

It is an amenable number.

84138241 is a deficient number, since it is larger than the sum of its proper divisors (7648943).

84138241 is a wasteful number, since it uses less digits than its factorization.

84138241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7648942.

The product of its digits is 6144, while the sum is 31.

The square root of 84138241 is about 9172.6899544245. The cubic root of 84138241 is about 438.1920319591.

The spelling of 84138241 in words is "eighty-four million, one hundred thirty-eight thousand, two hundred forty-one".