1125740098081 has 9 divisors (see below), whose sum is σ = 1132469531769. Its totient is φ = 1119050436336.

The previous prime is 1125740098079. The next prime is 1125740098151. The reversal of 1125740098081 is 1808900475211.

The square root of 1125740098081 is 1061009.

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 881704098081 + 244036000000 = 938991^2 + 494000^2 .

It is not a de Polignac number, because 1125740098081 - 2¹ = 1125740098079 is a prime.

It is a super-2 number, since 2×1125740098081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125740098031) 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 8 ways as a sum of consecutive naturals, for example, 183551491 + ... + 183557623.

Almost surely, 2^{1125740098081} is an apocalyptic number.

1125740098081 is the 1061009-th square number.

1125740098081 is the 530505-th centered octagonal number.

It is an amenable number.

1125740098081 is a deficient number, since it is larger than the sum of its proper divisors (6729433688).

1125740098081 is an frugal number, since it uses more digits than its factorization.

1125740098081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12612 (or 6306 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 46.

The spelling of 1125740098081 in words is "one trillion, one hundred twenty-five billion, seven hundred forty million, ninety-eight thousand, eighty-one".