1231456346 has 16 divisors (see below), whose sum is σ = 1858193568. Its totient is φ = 612066000.

The previous prime is 1231456321. The next prime is 1231456351. The reversal of 1231456346 is 6436541321.

It is a Curzon 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, 547901 + ... + 550143.

It is an arithmetic number, because the mean of its divisors is an integer number (116137098).

Almost surely, 2^1231456346 is an apocalyptic number.

1231456346 is a deficient number, since it is larger than the sum of its proper divisors (626737222).

1231456346 is a wasteful number, since it uses less digits than its factorization.

1231456346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3757.

The product of its digits is 51840, while the sum is 35.

The square root of 1231456346 is about 35092.1123046191. The cubic root of 1231456346 is about 1071.8639726088.

Adding to 1231456346 its reverse (6436541321), we get a palindrome (7667997667).

The spelling of 1231456346 in words is "one billion, two hundred thirty-one million, four hundred fifty-six thousand, three hundred forty-six".