1115516542 has 16 divisors (see below), whose sum is σ = 1913812992. Its totient is φ = 477703800.

The previous prime is 1115516531. The next prime is 1115516569. The reversal of 1115516542 is 2456155111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12334 + ... + 48817.

It is an arithmetic number, because the mean of its divisors is an integer number (119613312).

Almost surely, 2^1115516542 is an apocalyptic number.

1115516542 is a deficient number, since it is larger than the sum of its proper divisors (798296450).

1115516542 is a wasteful number, since it uses less digits than its factorization.

1115516542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62463.

The product of its digits is 6000, while the sum is 31.

The square root of 1115516542 is about 33399.3494248017. The cubic root of 1115516542 is about 1037.1112332935. Note that the first 3 decimals are identical.

The spelling of 1115516542 in words is "one billion, one hundred fifteen million, five hundred sixteen thousand, five hundred forty-two".