6631151 has 2 divisors, whose sum is σ = 6631152. Its totient is φ = 6631150.

The previous prime is 6631147. The next prime is 6631189. The reversal of 6631151 is 1511366.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6631151 - 2² = 6631147 is a prime.

It is an Ulam number.

It is equal to p₄₅₃₁₅₅ and since 6631151 and 453155 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6631951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3315575 + 3315576.

It is an arithmetic number, because the mean of its divisors is an integer number (3315576).

Almost surely, 2^6631151 is an apocalyptic number.

6631151 is a deficient number, since it is larger than the sum of its proper divisors (1).

6631151 is an equidigital number, since it uses as much as digits as its factorization.

6631151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 23.

The square root of 6631151 is about 2575.1021338968. The cubic root of 6631151 is about 187.8723953004.

The spelling of 6631151 in words is "six million, six hundred thirty-one thousand, one hundred fifty-one".