1115516450 has 12 divisors (see below), whose sum is σ = 2074860690. Its totient is φ = 446206560.

The previous prime is 1115516447. The next prime is 1115516461. The reversal of 1115516450 is 546155111.

It can be written as a sum of positive squares in 3 ways, for example, as 1089066001 + 26450449 = 33001^2 + 5143^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11155115 + ... + 11155214.

Almost surely, 2^1115516450 is an apocalyptic number.

1115516450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1115516450 is a deficient number, since it is larger than the sum of its proper divisors (959344240).

1115516450 is a wasteful number, since it uses less digits than its factorization.

1115516450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22310341 (or 22310336 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 29.

The square root of 1115516450 is about 33399.3480475293. The cubic root of 1115516450 is about 1037.1112047822. Note that the first 3 decimals are identical.

The spelling of 1115516450 in words is "one billion, one hundred fifteen million, five hundred sixteen thousand, four hundred fifty".