1395793919 has 4 divisors (see below), whose sum is σ = 1503162696. Its totient is φ = 1288425144.

The previous prime is 1395793913. The next prime is 1395793943. The reversal of 1395793919 is 9193975931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9193975931 = 7 ⋅1313425133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1395793919 is a prime.

It is a super-2 number, since 2×1395793919² = 3896481328634757122, 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 (1395793913) 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, 53684369 + ... + 53684394.

It is an arithmetic number, because the mean of its divisors is an integer number (375790674).

Almost surely, 2^1395793919 is an apocalyptic number.

1395793919 is a deficient number, since it is larger than the sum of its proper divisors (107368777).

1395793919 is a wasteful number, since it uses less digits than its factorization.

1395793919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107368776.

The product of its digits is 2066715, while the sum is 56.

The square root of 1395793919 is about 37360.3254669977. The cubic root of 1395793919 is about 1117.5675096305.

The spelling of 1395793919 in words is "one billion, three hundred ninety-five million, seven hundred ninety-three thousand, nine hundred nineteen".