1090740028225 has 9 divisors (see below), whose sum is σ = 1352524110217. Its totient is φ = 872587845040.

The previous prime is 1090740028129. The next prime is 1090740028229. The reversal of 1090740028225 is 5228200470901.

The square root of 1090740028225 is 1044385.

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

1090740028225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 106787129089 + 983952899136 = 326783^2 + 991944^2 .

It is not a de Polignac number, because 1090740028225 - 2¹⁷ = 1090739897153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1090740028229) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5117487 + ... + 5326363.

Almost surely, 2^{1090740028225} is an apocalyptic number.

1090740028225 is the 1044385-th square number.

1090740028225 is the 522193-rd centered octagonal number.

It is an amenable number.

1090740028225 is a deficient number, since it is larger than the sum of its proper divisors (261784081992).

1090740028225 is an frugal number, since it uses more digits than its factorization.

1090740028225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417764 (or 208882 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 1090740028225 in words is "one trillion, ninety billion, seven hundred forty million, twenty-eight thousand, two hundred twenty-five".