1254643922 has 32 divisors (see below), whose sum is σ = 2212147200. Its totient is φ = 533433600.

The previous prime is 1254643903. The next prime is 1254643969. The reversal of 1254643922 is 2293464521.

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 15 ways as a sum of consecutive naturals, for example, 79922 + ... + 94322.

It is an arithmetic number, because the mean of its divisors is an integer number (69129600).

Almost surely, 2^1254643922 is an apocalyptic number.

1254643922 is a deficient number, since it is larger than the sum of its proper divisors (957503278).

1254643922 is a wasteful number, since it uses less digits than its factorization.

1254643922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14551 (or 14537 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 1254643922 is about 35420.9531492308. The cubic root of 1254643922 is about 1078.5496999689.

The spelling of 1254643922 in words is "one billion, two hundred fifty-four million, six hundred forty-three thousand, nine hundred twenty-two".