1154555428 has 24 divisors (see below), whose sum is σ = 2197028288. Its totient is φ = 527695776.

The previous prime is 1154555419. The next prime is 1154555431. The reversal of 1154555428 is 8245554511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102426 + ... + 113137.

Almost surely, 2^1154555428 is an apocalyptic number.

It is an amenable number.

1154555428 is a deficient number, since it is larger than the sum of its proper divisors (1042472860).

1154555428 is a wasteful number, since it uses less digits than its factorization.

1154555428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215683 (or 215681 counting only the distinct ones).

The product of its digits is 160000, while the sum is 40.

The square root of 1154555428 is about 33978.7496532759. The cubic root of 1154555428 is about 1049.0711144042.

The spelling of 1154555428 in words is "one billion, one hundred fifty-four million, five hundred fifty-five thousand, four hundred twenty-eight".