1361373919 has 2 divisors, whose sum is σ = 1361373920. Its totient is φ = 1361373918.

The previous prime is 1361373917. The next prime is 1361373929. The reversal of 1361373919 is 9193731631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1361373919 - 2¹ = 1361373917 is a prime.

It is a super-2 number, since 2×1361373919² = 3706677894666837122, which contains 22 as substring.

Together with 1361373917, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361373911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680686959 + 680686960.

It is an arithmetic number, because the mean of its divisors is an integer number (680686960).

Almost surely, 2^1361373919 is an apocalyptic number.

1361373919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361373919 is an equidigital number, since it uses as much as digits as its factorization.

1361373919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 91854, while the sum is 43.

The square root of 1361373919 is about 36896.8009317881. The cubic root of 1361373919 is about 1108.3046160661.

The spelling of 1361373919 in words is "one billion, three hundred sixty-one million, three hundred seventy-three thousand, nine hundred nineteen".