1126389529225 has 27 divisors (see below), whose sum is σ = 1404284737429. Its totient is φ = 896259291200.

The previous prime is 1126389529169. The next prime is 1126389529229. The reversal of 1126389529225 is 5229259836211.

The square root of 1126389529225 is 1061315.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 221828754169 + 904560775056 = 470987^2 + 951084^2 .

It is not a de Polignac number, because 1126389529225 - 2¹⁷ = 1126389398153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1126389529229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1236431520 + ... + 1236432430.

Almost surely, 2^{1126389529225} is an apocalyptic number.

1126389529225 is the 1061315-th square number.

1126389529225 is the 530658-th centered octagonal number.

It is an amenable number.

1126389529225 is a deficient number, since it is larger than the sum of its proper divisors (277895208204).

1126389529225 is an frugal number, since it uses more digits than its factorization.

1126389529225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298 (or 1149 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 55.

The spelling of 1126389529225 in words is "one trillion, one hundred twenty-six billion, three hundred eighty-nine million, five hundred twenty-nine thousand, two hundred twenty-five".