1146431327 has 4 divisors (see below), whose sum is σ = 1148171640. Its totient is φ = 1144691016.

The previous prime is 1146431311. The next prime is 1146431333. The reversal of 1146431327 is 7231346411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7231346411 = 97 ⋅74549963.

It is a cyclic number.

It is not a de Polignac number, because 1146431327 - 2⁴ = 1146431311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1146431293 and 1146431302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146431927) 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, 869168 + ... + 870485.

It is an arithmetic number, because the mean of its divisors is an integer number (287042910).

Almost surely, 2^1146431327 is an apocalyptic number.

1146431327 is a deficient number, since it is larger than the sum of its proper divisors (1740313).

1146431327 is an equidigital number, since it uses as much as digits as its factorization.

1146431327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740312.

The product of its digits is 12096, while the sum is 32.

The square root of 1146431327 is about 33858.9918190132. The cubic root of 1146431327 is about 1046.6047022810.

Adding to 1146431327 its reverse (7231346411), we get a palindrome (8377777738).

The spelling of 1146431327 in words is "one billion, one hundred forty-six million, four hundred thirty-one thousand, three hundred twenty-seven".