1131660679 has 2 divisors, whose sum is σ = 1131660680. Its totient is φ = 1131660678.

The previous prime is 1131660671. The next prime is 1131660727. The reversal of 1131660679 is 9760661311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1131660679 - 2³ = 1131660671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131660671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565830339 + 565830340.

It is an arithmetic number, because the mean of its divisors is an integer number (565830340).

Almost surely, 2^1131660679 is an apocalyptic number.

1131660679 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131660679 is an equidigital number, since it uses as much as digits as its factorization.

1131660679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 1131660679 is about 33640.1646696326. The cubic root of 1131660679 is about 1042.0904326154.

The spelling of 1131660679 in words is "one billion, one hundred thirty-one million, six hundred sixty thousand, six hundred seventy-nine".