1126504321 has 2 divisors, whose sum is σ = 1126504322. Its totient is φ = 1126504320.

The previous prime is 1126504289. The next prime is 1126504339. The reversal of 1126504321 is 1234056211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1085043600 + 41460721 = 32940^2 + 6439^2 .

It is a cyclic number.

It is not a de Polignac number, because 1126504321 - 2⁵ = 1126504289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1126504121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563252160 + 563252161.

It is an arithmetic number, because the mean of its divisors is an integer number (563252161).

Almost surely, 2^1126504321 is an apocalyptic number.

It is an amenable number.

1126504321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126504321 is an equidigital number, since it uses as much as digits as its factorization.

1126504321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1126504321 is about 33563.4372643804. The cubic root of 1126504321 is about 1040.5052774650.

The spelling of 1126504321 in words is "one billion, one hundred twenty-six million, five hundred four thousand, three hundred twenty-one".