1128556154 has 16 divisors (see below), whose sum is σ = 1851258240. Its totient is φ = 511721760.

The previous prime is 1128556139. The next prime is 1128556193. The reversal of 1128556154 is 4516558211.

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, 53714 + ... + 71709.

It is an arithmetic number, because the mean of its divisors is an integer number (115703640).

Almost surely, 2^1128556154 is an apocalyptic number.

1128556154 is a deficient number, since it is larger than the sum of its proper divisors (722702086).

1128556154 is a wasteful number, since it uses less digits than its factorization.

1128556154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125845.

The product of its digits is 48000, while the sum is 38.

The square root of 1128556154 is about 33593.9898493763. The cubic root of 1128556154 is about 1041.1366252929.

The spelling of 1128556154 in words is "one billion, one hundred twenty-eight million, five hundred fifty-six thousand, one hundred fifty-four".