1361113499 has 2 divisors, whose sum is σ = 1361113500. Its totient is φ = 1361113498.

The previous prime is 1361113477. The next prime is 1361113553. The reversal of 1361113499 is 9943111631.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1361113499 is a prime.

It is not a weakly prime, because it can be changed into another prime (1361112499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680556749 + 680556750.

It is an arithmetic number, because the mean of its divisors is an integer number (680556750).

Almost surely, 2^1361113499 is an apocalyptic number.

1361113499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361113499 is an equidigital number, since it uses as much as digits as its factorization.

1361113499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 38.

The square root of 1361113499 is about 36893.2717307641. The cubic root of 1361113499 is about 1108.2339416076.

The spelling of 1361113499 in words is "one billion, three hundred sixty-one million, one hundred thirteen thousand, four hundred ninety-nine".