1254543412 has 12 divisors (see below), whose sum is σ = 2208598560. Its totient is φ = 623515256.

The previous prime is 1254543347. The next prime is 1254543413. The reversal of 1254543412 is 2143454521.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254543413) 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, 938362 + ... + 939697.

It is an arithmetic number, because the mean of its divisors is an integer number (184049880).

Almost surely, 2^1254543412 is an apocalyptic number.

It is an amenable number.

1254543412 is a deficient number, since it is larger than the sum of its proper divisors (954055148).

1254543412 is a wasteful number, since it uses less digits than its factorization.

1254543412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878230 (or 1878228 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 1254543412 is about 35419.5343278254. The cubic root of 1254543412 is about 1078.5208981914.

Adding to 1254543412 its reverse (2143454521), we get a palindrome (3397997933).

The spelling of 1254543412 in words is "one billion, two hundred fifty-four million, five hundred forty-three thousand, four hundred twelve".