6630157 has 2 divisors, whose sum is σ = 6630158. Its totient is φ = 6630156.

The previous prime is 6630137. The next prime is 6630163. The reversal of 6630157 is 7510366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3709476 + 2920681 = 1926^2 + 1709^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6630157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6630137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3315078 + 3315079.

It is an arithmetic number, because the mean of its divisors is an integer number (3315079).

Almost surely, 2^6630157 is an apocalyptic number.

It is an amenable number.

6630157 is a deficient number, since it is larger than the sum of its proper divisors (1).

6630157 is an equidigital number, since it uses as much as digits as its factorization.

6630157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 6630157 is about 2574.9091246100. The cubic root of 6630157 is about 187.8630075640.

The spelling of 6630157 in words is "six million, six hundred thirty thousand, one hundred fifty-seven".