125540454412 has 12 divisors (see below), whose sum is σ = 219715198920. Its totient is φ = 62764683296.

The previous prime is 125540454401. The next prime is 125540454419. The reversal of 125540454412 is 214454045521.

It is not an unprimeable number, because it can be changed into a prime (125540454419) 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 3 ways as a sum of consecutive naturals, for example, 1334818 + ... + 1425769.

It is an arithmetic number, because the mean of its divisors is an integer number (18309599910).

Almost surely, 2^125540454412 is an apocalyptic number.

It is an amenable number.

125540454412 is a deficient number, since it is larger than the sum of its proper divisors (94174744508).

125540454412 is a wasteful number, since it uses less digits than its factorization.

125540454412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771960 (or 2771958 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 37.

Adding to 125540454412 its reverse (214454045521), we get a palindrome (339994499933).

The spelling of 125540454412 in words is "one hundred twenty-five billion, five hundred forty million, four hundred fifty-four thousand, four hundred twelve".