6151181 has 2 divisors, whose sum is σ = 6151182. Its totient is φ = 6151180.

The previous prime is 6151157. The next prime is 6151183. The reversal of 6151181 is 1811516.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5248681 + 902500 = 2291^2 + 950^2 .

It is a cyclic number.

It is not a de Polignac number, because 6151181 - 2¹⁴ = 6134797 is a prime.

It is a super-2 number, since 2×6151181² = 75674055389522, which contains 22 as substring.

Together with 6151183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6151183) 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, 3075590 + 3075591.

It is an arithmetic number, because the mean of its divisors is an integer number (3075591).

Almost surely, 2^6151181 is an apocalyptic number.

It is an amenable number.

6151181 is a deficient number, since it is larger than the sum of its proper divisors (1).

6151181 is an equidigital number, since it uses as much as digits as its factorization.

6151181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 23.

The square root of 6151181 is about 2480.1574546790. The cubic root of 6151181 is about 183.2256068686.

Adding to 6151181 its reverse (1811516), we get a palindrome (7962697).

The spelling of 6151181 in words is "six million, one hundred fifty-one thousand, one hundred eighty-one".