1125725640481 has 8 divisors (see below), whose sum is σ = 1229394849984. Its totient is φ = 1024495706640.

The previous prime is 1125725640407. The next prime is 1125725640527. The reversal of 1125725640481 is 1840465275211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1125725640481 - 2¹³ = 1125725632289 is a prime.

It is a super-2 number, since 2×1125725640481² (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 (1125725440481) 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 7 ways as a sum of consecutive naturals, for example, 609817951 + ... + 609819796.

It is an arithmetic number, because the mean of its divisors is an integer number (153674356248).

Almost surely, 2^{1125725640481} is an apocalyptic number.

It is an amenable number.

1125725640481 is a deficient number, since it is larger than the sum of its proper divisors (103669209503).

1125725640481 is a wasteful number, since it uses less digits than its factorization.

1125725640481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219637831.

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 1125725640481 in words is "one trillion, one hundred twenty-five billion, seven hundred twenty-five million, six hundred forty thousand, four hundred eighty-one".