1272484168 has 16 divisors (see below), whose sum is σ = 2450392380. Its totient is φ = 619046208.

The previous prime is 1272484151. The next prime is 1272484181. The reversal of 1272484168 is 8614842721.

It can be written as a sum of positive squares in 2 ways, for example, as 963357444 + 309126724 = 31038^2 + 17582^2 .

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 3 ways as a sum of consecutive naturals, for example, 2149171 + ... + 2149762.

Almost surely, 2^1272484168 is an apocalyptic number.

It is an amenable number.

1272484168 is a deficient number, since it is larger than the sum of its proper divisors (1177908212).

1272484168 is a wasteful number, since it uses less digits than its factorization.

1272484168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4298976 (or 4298972 counting only the distinct ones).

The product of its digits is 172032, while the sum is 43.

The square root of 1272484168 is about 35671.8960527752. The cubic root of 1272484168 is about 1083.6377583489.

It can be divided in two parts, 1272484 and 168, that multiplied together give a palindrome (213777312).

The spelling of 1272484168 in words is "one billion, two hundred seventy-two million, four hundred eighty-four thousand, one hundred sixty-eight".