1123637087 has 2 divisors, whose sum is σ = 1123637088. Its totient is φ = 1123637086.

The previous prime is 1123637071. The next prime is 1123637149. The reversal of 1123637087 is 7807363211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123637087 - 2⁴ = 1123637071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1123637087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123637017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561818543 + 561818544.

It is an arithmetic number, because the mean of its divisors is an integer number (561818544).

Almost surely, 2^1123637087 is an apocalyptic number.

1123637087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123637087 is an equidigital number, since it uses as much as digits as its factorization.

1123637087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 1123637087 is about 33520.6963978972. The cubic root of 1123637087 is about 1039.6217457644.

The spelling of 1123637087 in words is "one billion, one hundred twenty-three million, six hundred thirty-seven thousand, eighty-seven".