1918327245 has 8 divisors (see below), whose sum is σ = 3069323616. Its totient is φ = 1023107856.

The previous prime is 1918327237. The next prime is 1918327273. The reversal of 1918327245 is 5427238191.

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

It is not a de Polignac number, because 1918327245 - 2³ = 1918327237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1918327197 and 1918327206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63944227 + ... + 63944256.

It is an arithmetic number, because the mean of its divisors is an integer number (383665452).

Almost surely, 2^1918327245 is an apocalyptic number.

1918327245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1918327245 is a deficient number, since it is larger than the sum of its proper divisors (1150996371).

1918327245 is a wasteful number, since it uses less digits than its factorization.

1918327245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127888491.

The product of its digits is 120960, while the sum is 42.

The square root of 1918327245 is about 43798.7128235522. The cubic root of 1918327245 is about 1242.5319503759.

The spelling of 1918327245 in words is "one billion, nine hundred eighteen million, three hundred twenty-seven thousand, two hundred forty-five".