1115080279 has 4 divisors (see below), whose sum is σ = 1119020776. Its totient is φ = 1111139784.

The previous prime is 1115080259. The next prime is 1115080289. The reversal of 1115080279 is 9720805111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9720805111 = 881 ⋅11033831.

It is a cyclic number.

It is not a de Polignac number, because 1115080279 - 2¹⁷ = 1114949207 is a prime.

It is a super-2 number, since 2×1115080279² = 2486808057229435682, 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 (1115080259) 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, 1969824 + ... + 1970389.

It is an arithmetic number, because the mean of its divisors is an integer number (279755194).

Almost surely, 2^1115080279 is an apocalyptic number.

1115080279 is a deficient number, since it is larger than the sum of its proper divisors (3940497).

1115080279 is an equidigital number, since it uses as much as digits as its factorization.

1115080279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3940496.

The product of its (nonzero) digits is 5040, while the sum is 34.

The square root of 1115080279 is about 33392.8177756834. The cubic root of 1115080279 is about 1036.9760157398.

The spelling of 1115080279 in words is "one billion, one hundred fifteen million, eighty thousand, two hundred seventy-nine".