1069745461225 has 81 divisors (see below), whose sum is σ = 1599666603717. Its totient is φ = 707550231360.

The previous prime is 1069745461201. The next prime is 1069745461297. The reversal of 1069745461225 is 5221645479601.

The square root of 1069745461225 is 1034285.

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 14704230121 + 1055041231104 = 121261^2 + 1027152^2 .

It is not a de Polignac number, because 1069745461225 - 2²³ = 1069737072617 is a prime.

It is a super-2 number, since 2×1069745461225² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1049798766 + ... + 1049799784.

Almost surely, 2^{1069745461225} is an apocalyptic number.

1069745461225 is the 1034285-th square number.

1069745461225 is the 517143-rd centered octagonal number.

It is an amenable number.

1069745461225 is a deficient number, since it is larger than the sum of its proper divisors (529921142492).

1069745461225 is an frugal number, since it uses more digits than its factorization.

1069745461225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120 (or 1060 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 1069745461225 in words is "one trillion, sixty-nine billion, seven hundred forty-five million, four hundred sixty-one thousand, two hundred twenty-five".