1122606521 has 8 divisors (see below), whose sum is σ = 1128668904. Its totient is φ = 1116559360.

The previous prime is 1122606493. The next prime is 1122606533. The reversal of 1122606521 is 1256062211.

It can be written as a sum of positive squares in 4 ways, for example, as 302586025 + 820020496 = 17395^2 + 28636^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122606521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122606581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163265 + ... + 170001.

It is an arithmetic number, because the mean of its divisors is an integer number (141083613).

Almost surely, 2^1122606521 is an apocalyptic number.

It is an amenable number.

1122606521 is a deficient number, since it is larger than the sum of its proper divisors (6062383).

1122606521 is an equidigital number, since it uses as much as digits as its factorization.

1122606521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7611.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1122606521 is about 33505.3207864064. The cubic root of 1122606521 is about 1039.3038119893.

Adding to 1122606521 its reverse (1256062211), we get a palindrome (2378668732).

The spelling of 1122606521 in words is "one billion, one hundred twenty-two million, six hundred six thousand, five hundred twenty-one".