1478168231 has 2 divisors, whose sum is σ = 1478168232. Its totient is φ = 1478168230.

The previous prime is 1478168191. The next prime is 1478168233. The reversal of 1478168231 is 1328618741.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1478168231 is a prime.

It is a super-3 number, since 3×1478168231³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 1478168233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1478168233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 739084115 + 739084116.

It is an arithmetic number, because the mean of its divisors is an integer number (739084116).

Almost surely, 2^1478168231 is an apocalyptic number.

1478168231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1478168231 is an equidigital number, since it uses as much as digits as its factorization.

1478168231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 41.

The square root of 1478168231 is about 38446.9534683829. The cubic root of 1478168231 is about 1139.1334933310.

The spelling of 1478168231 in words is "one billion, four hundred seventy-eight million, one hundred sixty-eight thousand, two hundred thirty-one".