1126326587 has 4 divisors (see below), whose sum is σ = 1126426416. Its totient is φ = 1126226760.

The previous prime is 1126326581. The next prime is 1126326589. The reversal of 1126326587 is 7856236211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7856236211 = 929 ⋅8456659.

It is a cyclic number.

It is not a de Polignac number, because 1126326587 - 2⁴ = 1126326571 is a prime.

It is a super-2 number, since 2×1126326587² = 2537223161166137138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1126326581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30464 + ... + 56397.

It is an arithmetic number, because the mean of its divisors is an integer number (281606604).

Almost surely, 2^1126326587 is an apocalyptic number.

1126326587 is a deficient number, since it is larger than the sum of its proper divisors (99829).

1126326587 is an equidigital number, since it uses as much as digits as its factorization.

1126326587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99828.

The product of its digits is 120960, while the sum is 41.

The square root of 1126326587 is about 33560.7894275448. The cubic root of 1126326587 is about 1040.4505527476.

The spelling of 1126326587 in words is "one billion, one hundred twenty-six million, three hundred twenty-six thousand, five hundred eighty-seven".