1478231327 has 4 divisors (see below), whose sum is σ = 1479368856. Its totient is φ = 1477093800.

The previous prime is 1478231323. The next prime is 1478231333. The reversal of 1478231327 is 7231328741.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1478231327 - 2² = 1478231323 is a prime.

It is a super-2 number, since 2×1478231327² = 4370335712248361858, 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 (1478231323) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 566813 + ... + 569414.

It is an arithmetic number, because the mean of its divisors is an integer number (369842214).

Almost surely, 2^1478231327 is an apocalyptic number.

1478231327 is a deficient number, since it is larger than the sum of its proper divisors (1137529).

1478231327 is a wasteful number, since it uses less digits than its factorization.

1478231327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137528.

The product of its digits is 56448, while the sum is 38.

The square root of 1478231327 is about 38447.7740187907. The cubic root of 1478231327 is about 1139.1497011714.

The spelling of 1478231327 in words is "one billion, four hundred seventy-eight million, two hundred thirty-one thousand, three hundred twenty-seven".