1122751478 has 16 divisors (see below), whose sum is σ = 1691504640. Its totient is φ = 558922536.

The previous prime is 1122751453. The next prime is 1122751481. The reversal of 1122751478 is 8741572211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641801 + ... + 643547.

It is an arithmetic number, because the mean of its divisors is an integer number (105719040).

Almost surely, 2^1122751478 is an apocalyptic number.

1122751478 is a deficient number, since it is larger than the sum of its proper divisors (568753162).

1122751478 is a wasteful number, since it uses less digits than its factorization.

1122751478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971.

The product of its digits is 31360, while the sum is 38.

The square root of 1122751478 is about 33507.4839103147. The cubic root of 1122751478 is about 1039.3485435659.

The spelling of 1122751478 in words is "one billion, one hundred twenty-two million, seven hundred fifty-one thousand, four hundred seventy-eight".