1115199359 has 4 divisors (see below), whose sum is σ = 1116129120. Its totient is φ = 1114269600.

The previous prime is 1115199331. The next prime is 1115199391. The reversal of 1115199359 is 9539915111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9539915111 = 61 ⋅156392051.

It is a cyclic number.

It is not a de Polignac number, because 1115199359 - 2¹⁶ = 1115133823 is a prime.

It is a super-2 number, since 2×1115199359² = 2487339220628021762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115199259) 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, 463079 + ... + 465480.

It is an arithmetic number, because the mean of its divisors is an integer number (279032280).

Almost surely, 2^1115199359 is an apocalyptic number.

1115199359 is a deficient number, since it is larger than the sum of its proper divisors (929761).

1115199359 is an equidigital number, since it uses as much as digits as its factorization.

1115199359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929760.

The product of its digits is 54675, while the sum is 44.

The square root of 1115199359 is about 33394.6007462284. The cubic root of 1115199359 is about 1037.0129274944.

The spelling of 1115199359 in words is "one billion, one hundred fifteen million, one hundred ninety-nine thousand, three hundred fifty-nine".