1115551233 has 6 divisors (see below), whose sum is σ = 1611351794. Its totient is φ = 743700816.

The previous prime is 1115551223. The next prime is 1115551259. The reversal of 1115551233 is 3321555111.

1115551233 is a `hidden beast` number, since 1 + 115 + 5 + 512 + 33 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1100713329 + 14837904 = 33177^2 + 3852^2 .

It is not a de Polignac number, because 1115551233 - 2⁵ = 1115551201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1115551197 and 1115551206.

It is not an unprimeable number, because it can be changed into a prime (1115551223) 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, 61975060 + ... + 61975077.

Almost surely, 2^1115551233 is an apocalyptic number.

It is an amenable number.

1115551233 is a deficient number, since it is larger than the sum of its proper divisors (495800561).

1115551233 is a wasteful number, since it uses less digits than its factorization.

1115551233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123950143 (or 123950140 counting only the distinct ones).

The product of its digits is 2250, while the sum is 27.

The square root of 1115551233 is about 33399.8687572272. The cubic root of 1115551233 is about 1037.1219840836.

The spelling of 1115551233 in words is "one billion, one hundred fifteen million, five hundred fifty-one thousand, two hundred thirty-three".