1125809100545 has 8 divisors (see below), whose sum is σ = 1422074653440. Its totient is φ = 853244791920.

The previous prime is 1125809100541. The next prime is 1125809100551. The reversal of 1125809100545 is 5450019085211.

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

It is not a de Polignac number, because 1125809100545 - 2² = 1125809100541 is a prime.

It is a super-2 number, since 2×1125809100545² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1125809100541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5925310961 + ... + 5925311150.

It is an arithmetic number, because the mean of its divisors is an integer number (177759331680).

Almost surely, 2^{1125809100545} is an apocalyptic number.

It is an amenable number.

1125809100545 is a deficient number, since it is larger than the sum of its proper divisors (296265552895).

1125809100545 is a wasteful number, since it uses less digits than its factorization.

1125809100545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11850622135.

The product of its (nonzero) digits is 72000, while the sum is 41.

The spelling of 1125809100545 in words is "one trillion, one hundred twenty-five billion, eight hundred nine million, one hundred thousand, five hundred forty-five".