1361836919 has 2 divisors, whose sum is σ = 1361836920. Its totient is φ = 1361836918.

The previous prime is 1361836849. The next prime is 1361836921. The reversal of 1361836919 is 9196381631.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1361836919 is a prime.

It is a super-2 number, since 2×1361836919² = 3709199587902825122, which contains 22 as substring.

Together with 1361836921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361836519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680918459 + 680918460.

It is an arithmetic number, because the mean of its divisors is an integer number (680918460).

Almost surely, 2^1361836919 is an apocalyptic number.

1361836919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361836919 is an equidigital number, since it uses as much as digits as its factorization.

1361836919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 47.

The square root of 1361836919 is about 36903.0746551016. The cubic root of 1361836919 is about 1108.4302457377.

The spelling of 1361836919 in words is "one billion, three hundred sixty-one million, eight hundred thirty-six thousand, nine hundred nineteen".