1123866515 has 16 divisors (see below), whose sum is σ = 1452180960. Its totient is φ = 831859200.

The previous prime is 1123866487. The next prime is 1123866517. The reversal of 1123866515 is 5156683211.

It is not a de Polignac number, because 1123866515 - 2⁶ = 1123866451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1123866517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107036 + ... + 117065.

It is an arithmetic number, because the mean of its divisors is an integer number (90761310).

Almost surely, 2^1123866515 is an apocalyptic number.

1123866515 is a deficient number, since it is larger than the sum of its proper divisors (328314445).

1123866515 is a wasteful number, since it uses less digits than its factorization.

1123866515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224182.

The product of its digits is 43200, while the sum is 38.

The square root of 1123866515 is about 33524.1184074988. The cubic root of 1123866515 is about 1039.6924987707.

The spelling of 1123866515 in words is "one billion, one hundred twenty-three million, eight hundred sixty-six thousand, five hundred fifteen".