1360689991 has 2 divisors, whose sum is σ = 1360689992. Its totient is φ = 1360689990.

The previous prime is 1360689971. The next prime is 1360690007. The reversal of 1360689991 is 1999860631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1360689991 - 2¹¹ = 1360687943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1360689901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680344995 + 680344996.

It is an arithmetic number, because the mean of its divisors is an integer number (680344996).

Almost surely, 2^1360689991 is an apocalyptic number.

1360689991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1360689991 is an equidigital number, since it uses as much as digits as its factorization.

1360689991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 52.

The square root of 1360689991 is about 36887.5316468858. The cubic root of 1360689991 is about 1108.1189880230.

The spelling of 1360689991 in words is "one billion, three hundred sixty million, six hundred eighty-nine thousand, nine hundred ninety-one".