7138241 has 4 divisors (see below), whose sum is σ = 7787184. Its totient is φ = 6489300.

The previous prime is 7138237. The next prime is 7138273. The reversal of 7138241 is 1428317.

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 7138241 - 2² = 7138237 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7138241.

It is not an unprimeable number, because it can be changed into a prime (7138541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324455 + ... + 324476.

It is an arithmetic number, because the mean of its divisors is an integer number (1946796).

Almost surely, 2^7138241 is an apocalyptic number.

It is an amenable number.

7138241 is a deficient number, since it is larger than the sum of its proper divisors (648943).

7138241 is a wasteful number, since it uses less digits than its factorization.

7138241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648942.

The product of its digits is 1344, while the sum is 26.

The square root of 7138241 is about 2671.7486783004. The cubic root of 7138241 is about 192.5441828082.

The spelling of 7138241 in words is "seven million, one hundred thirty-eight thousand, two hundred forty-one".