1115557748 has 24 divisors (see below), whose sum is σ = 2082858624. Its totient is φ = 520956800.

The previous prime is 1115557747. The next prime is 1115557769. The reversal of 1115557748 is 8477555111.

It is a junction number, because it is equal to n+sod(n) for n = 1115557699 and 1115557708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115557747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53708 + ... + 71523.

It is an arithmetic number, because the mean of its divisors is an integer number (86785776).

Almost surely, 2^1115557748 is an apocalyptic number.

It is an amenable number.

1115557748 is a deficient number, since it is larger than the sum of its proper divisors (967300876).

1115557748 is a wasteful number, since it uses less digits than its factorization.

1115557748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125383 (or 125381 counting only the distinct ones).

The product of its digits is 196000, while the sum is 44.

The square root of 1115557748 is about 33399.9662874081. The cubic root of 1115557748 is about 1037.1240030665.

The spelling of 1115557748 in words is "one billion, one hundred fifteen million, five hundred fifty-seven thousand, seven hundred forty-eight".