1125809100544 has 36 divisors (see below), whose sum is σ = 2247291804520. Its totient is φ = 562886691840.

The previous prime is 1125809100541. The next prime is 1125809100551. The reversal of 1125809100544 is 4450019085211.

It is a super-2 number, since 2×1125809100544² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1125809100497 and 1125809100506.

It is a congruent number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12270199 + ... + 12361609.

Almost surely, 2^{1125809100544} is an apocalyptic number.

It is an amenable number.

1125809100544 is a deficient number, since it is larger than the sum of its proper divisors (1121482703976).

1125809100544 is an frugal number, since it uses more digits than its factorization.

1125809100544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139536 (or 139522 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The spelling of 1125809100544 in words is "one trillion, one hundred twenty-five billion, eight hundred nine million, one hundred thousand, five hundred forty-four".