1128596481 has 6 divisors (see below), whose sum is σ = 1630194930. Its totient is φ = 752397648.

The previous prime is 1128596431. The next prime is 1128596489. The reversal of 1128596481 is 1846958211.

It is a happy number.

1128596481 is a `hidden beast` number, since 1 + 1 + 2 + 85 + 96 + 481 = 666.

It can be written as a sum of positive squares in only one way, i.e., 762256881 + 366339600 = 27609^2 + 19140^2 .

It is not a de Polignac number, because 1128596481 - 2⁷ = 1128596353 is a prime.

It is a super-2 number, since 2×1128596481² = 2547460033851166722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1128596489) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62699796 + ... + 62699813.

It is an arithmetic number, because the mean of its divisors is an integer number (271699155).

Almost surely, 2^1128596481 is an apocalyptic number.

It is an amenable number.

1128596481 is a deficient number, since it is larger than the sum of its proper divisors (501598449).

1128596481 is a wasteful number, since it uses less digits than its factorization.

1128596481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125399615 (or 125399612 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The square root of 1128596481 is about 33594.5900555432. The cubic root of 1128596481 is about 1041.1490262167.

The spelling of 1128596481 in words is "one billion, one hundred twenty-eight million, five hundred ninety-six thousand, four hundred eighty-one".