1128615503 has 4 divisors (see below), whose sum is σ = 1144511568. Its totient is φ = 1112719440.

The previous prime is 1128615479. The next prime is 1128615517. The reversal of 1128615503 is 3055168211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3055168211 = 44041 ⋅69371.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1128615503 is a prime.

It is a super-2 number, since 2×1128615503² = 2547545907223886018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1128615503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128618503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7947926 + ... + 7948067.

It is an arithmetic number, because the mean of its divisors is an integer number (286127892).

Almost surely, 2^1128615503 is an apocalyptic number.

1128615503 is a deficient number, since it is larger than the sum of its proper divisors (15896065).

1128615503 is an equidigital number, since it uses as much as digits as its factorization.

1128615503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15896064.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 1128615503 is about 33594.8731654102. The cubic root of 1128615503 is about 1041.1548755543.

The spelling of 1128615503 in words is "one billion, one hundred twenty-eight million, six hundred fifteen thousand, five hundred three".