1123526887 has 4 divisors (see below), whose sum is σ = 1284030736. Its totient is φ = 963023040.

The previous prime is 1123526881. The next prime is 1123526897. The reversal of 1123526887 is 7886253211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7886253211 = 953 ⋅8275187.

It is not a de Polignac number, because 1123526887 - 2³ = 1123526879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123526881) 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, 80251914 + ... + 80251927.

It is an arithmetic number, because the mean of its divisors is an integer number (321007684).

Almost surely, 2^1123526887 is an apocalyptic number.

1123526887 is a deficient number, since it is larger than the sum of its proper divisors (160503849).

1123526887 is an equidigital number, since it uses as much as digits as its factorization.

1123526887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160503848.

The product of its digits is 161280, while the sum is 43.

The square root of 1123526887 is about 33519.0525969933. The cubic root of 1123526887 is about 1039.5877579038.

The spelling of 1123526887 in words is "one billion, one hundred twenty-three million, five hundred twenty-six thousand, eight hundred eighty-seven".