1131654028 has 24 divisors (see below), whose sum is σ = 2153565792. Its totient is φ = 518148864.

The previous prime is 1131653989. The next prime is 1131654031. The reversal of 1131654028 is 8204561311.

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, 222376 + ... + 227407.

It is an arithmetic number, because the mean of its divisors is an integer number (89731908).

Almost surely, 2^1131654028 is an apocalyptic number.

It is an amenable number.

1131654028 is a deficient number, since it is larger than the sum of its proper divisors (1021911764).

1131654028 is a wasteful number, since it uses less digits than its factorization.

1131654028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449841 (or 449839 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1131654028 is about 33640.0658144422. The cubic root of 1131654028 is about 1042.0883910856.

The spelling of 1131654028 in words is "one billion, one hundred thirty-one million, six hundred fifty-four thousand, twenty-eight".