1137991667 has 2 divisors, whose sum is σ = 1137991668. Its totient is φ = 1137991666.

The previous prime is 1137991663. The next prime is 1137991693. The reversal of 1137991667 is 7661997311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1137991667 - 2² = 1137991663 is a prime.

It is a super-2 number, since 2×1137991667² = 2590050068322877778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1137991663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568995833 + 568995834.

It is an arithmetic number, because the mean of its divisors is an integer number (568995834).

Almost surely, 2^1137991667 is an apocalyptic number.

1137991667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1137991667 is an equidigital number, since it uses as much as digits as its factorization.

1137991667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 428652, while the sum is 50.

The square root of 1137991667 is about 33734.1320771707. The cubic root of 1137991667 is about 1044.0301180250.

The spelling of 1137991667 in words is "one billion, one hundred thirty-seven million, nine hundred ninety-one thousand, six hundred sixty-seven".