1128204154 has 32 divisors (see below), whose sum is σ = 2220940800. Its totient is φ = 416424240.

The previous prime is 1128204131. The next prime is 1128204157. The reversal of 1128204154 is 4514028211.

It is a super-2 number, since 2×1128204154² = 2545689226205711432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1128204157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189864 + ... + 195715.

It is an arithmetic number, because the mean of its divisors is an integer number (69404400).

Almost surely, 2^1128204154 is an apocalyptic number.

1128204154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1128204154 is a deficient number, since it is larger than the sum of its proper divisors (1092736646).

1128204154 is a wasteful number, since it uses less digits than its factorization.

1128204154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385618.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 1128204154 is about 33588.7504084329. The cubic root of 1128204154 is about 1041.0283695068.

The spelling of 1128204154 in words is "one billion, one hundred twenty-eight million, two hundred four thousand, one hundred fifty-four".