125489243136 has 176 divisors, whose sum is σ = 340176420864. Its totient is φ = 41121816576.

The previous prime is 125489243107. The next prime is 125489243137. The reversal of 125489243136 is 631342984521.

125489243136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×125489243136² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (125489243137) 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, 56858545 + ... + 56860751.

Almost surely, 2^125489243136 is an apocalyptic number.

125489243136 is a gapful number since it is divisible by the number (16) 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 125489243136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170088210432).

125489243136 is an abundant number, since it is smaller than the sum of its proper divisors (214687177728).

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

125489243136 is a wasteful number, since it uses less digits than its factorization.

125489243136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536 (or 2518 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The spelling of 125489243136 in words is "one hundred twenty-five billion, four hundred eighty-nine million, two hundred forty-three thousand, one hundred thirty-six".