125454012100 has 72 divisors (see below), whose sum is σ = 279636352128. Its totient is φ = 48829699200.

The previous prime is 125454012097. The next prime is 125454012119. The reversal of 125454012100 is 1210454521.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 735955 + ... + 890245.

It is an arithmetic number, because the mean of its divisors is an integer number (3883838224).

Almost surely, 2^125454012100 is an apocalyptic number.

125454012100 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 125454012100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139818176064).

125454012100 is an abundant number, since it is smaller than the sum of its proper divisors (154182340028).

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

125454012100 is a wasteful number, since it uses less digits than its factorization.

125454012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154525 (or 154518 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 125454012100 its reverse (1210454521), we get a palindrome (126664466621).

The spelling of 125454012100 in words is "one hundred twenty-five billion, four hundred fifty-four million, twelve thousand, one hundred".