1914513917 has 4 divisors (see below), whose sum is σ = 1921578816. Its totient is φ = 1907449020.

The previous prime is 1914513911. The next prime is 1914513941. The reversal of 1914513917 is 7193154191.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7193154191 = 863 ⋅8335057.

It is a cyclic number.

It is not a de Polignac number, because 1914513917 - 2⁸ = 1914513661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1914513911) 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, 3532043 + ... + 3532584.

It is an arithmetic number, because the mean of its divisors is an integer number (480394704).

Almost surely, 2^1914513917 is an apocalyptic number.

It is an amenable number.

1914513917 is a deficient number, since it is larger than the sum of its proper divisors (7064899).

1914513917 is an equidigital number, since it uses as much as digits as its factorization.

1914513917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7064898.

The product of its digits is 34020, while the sum is 41.

The square root of 1914513917 is about 43755.1587472837. The cubic root of 1914513917 is about 1241.7080859137.

The spelling of 1914513917 in words is "one billion, nine hundred fourteen million, five hundred thirteen thousand, nine hundred seventeen".