1361790919 has 4 divisors (see below), whose sum is σ = 1364236344. Its totient is φ = 1359345496.

The previous prime is 1361790893. The next prime is 1361790929. The reversal of 1361790919 is 9190971631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1361790919 - 2⁷ = 1361790791 is a prime.

It is a super-2 number, since 2×1361790919² = 3708949014141729122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361790929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1221877 + ... + 1222990.

It is an arithmetic number, because the mean of its divisors is an integer number (341059086).

Almost surely, 2^1361790919 is an apocalyptic number.

1361790919 is a deficient number, since it is larger than the sum of its proper divisors (2445425).

1361790919 is an equidigital number, since it uses as much as digits as its factorization.

1361790919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445424.

The product of its (nonzero) digits is 91854, while the sum is 46.

The square root of 1361790919 is about 36902.4513955374. The cubic root of 1361790919 is about 1108.4177654462.

The spelling of 1361790919 in words is "one billion, three hundred sixty-one million, seven hundred ninety thousand, nine hundred nineteen".