1917414145 has 8 divisors (see below), whose sum is σ = 2309029056. Its totient is φ = 1528509936.

The previous prime is 1917414137. The next prime is 1917414179. The reversal of 1917414145 is 5414147191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1917414145 - 2³ = 1917414137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676117 + ... + 678946.

It is an arithmetic number, because the mean of its divisors is an integer number (288628632).

Almost surely, 2^1917414145 is an apocalyptic number.

It is an amenable number.

1917414145 is a deficient number, since it is larger than the sum of its proper divisors (391614911).

1917414145 is a wasteful number, since it uses less digits than its factorization.

1917414145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355351.

The product of its digits is 20160, while the sum is 37.

The square root of 1917414145 is about 43788.2877605416. The cubic root of 1917414145 is about 1242.3347758173.

The spelling of 1917414145 in words is "one billion, nine hundred seventeen million, four hundred fourteen thousand, one hundred forty-five".