7141391 has 2 divisors, whose sum is σ = 7141392. Its totient is φ = 7141390.

The previous prime is 7141369. The next prime is 7141417. The reversal of 7141391 is 1931417.

It is an a-pointer prime, because the next prime (7141417) can be obtained adding 7141391 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7141391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7141391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7141361) 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 as a sum of consecutive naturals, namely, 3570695 + 3570696.

It is an arithmetic number, because the mean of its divisors is an integer number (3570696).

Almost surely, 2^7141391 is an apocalyptic number.

7141391 is a deficient number, since it is larger than the sum of its proper divisors (1).

7141391 is an equidigital number, since it uses as much as digits as its factorization.

7141391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 26.

The square root of 7141391 is about 2672.3381148350. The cubic root of 7141391 is about 192.5725009416.

Adding to 7141391 its sum of digits (26), we get a palindrome (7141417).

The spelling of 7141391 in words is "seven million, one hundred forty-one thousand, three hundred ninety-one".