1331757667 has 2 divisors, whose sum is σ = 1331757668. Its totient is φ = 1331757666.

The previous prime is 1331757653. The next prime is 1331757677. The reversal of 1331757667 is 7667571331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331757667 is a prime.

It is a super-2 number, since 2×1331757667² = 3547156967226565778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1331757607) 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, 665878833 + 665878834.

It is an arithmetic number, because the mean of its divisors is an integer number (665878834).

Almost surely, 2^1331757667 is an apocalyptic number.

1331757667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331757667 is an equidigital number, since it uses as much as digits as its factorization.

1331757667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 555660, while the sum is 46.

The square root of 1331757667 is about 36493.2550891257. The cubic root of 1331757667 is about 1100.2086840989.

The spelling of 1331757667 in words is "one billion, three hundred thirty-one million, seven hundred fifty-seven thousand, six hundred sixty-seven".