125441031440 has 80 divisors (see below), whose sum is σ = 294057095808. Its totient is φ = 49763662848.

The previous prime is 125441031437. The next prime is 125441031449. The reversal of 125441031440 is 44130144521.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (125441031449) 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 15 ways as a sum of consecutive naturals, for example, 6340604 + ... + 6360356.

Almost surely, 2^125441031440 is an apocalyptic number.

125441031440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125441031440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147028547904).

125441031440 is an abundant number, since it is smaller than the sum of its proper divisors (168616064368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125441031440 is a wasteful number, since it uses less digits than its factorization.

125441031440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20416 (or 20410 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 125441031440 its reverse (44130144521), we get a palindrome (169571175961).

The spelling of 125441031440 in words is "one hundred twenty-five billion, four hundred forty-one million, thirty-one thousand, four hundred forty".