125400000 has 336 divisors, whose sum is σ = 476219520. Its totient is φ = 28800000.

The previous prime is 125399977. The next prime is 125400029. The reversal of 125400000 is 4521.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6599991 + ... + 6600009.

It is an arithmetic number, because the mean of its divisors is an integer number (1417320).

Almost surely, 2^125400000 is an apocalyptic number.

125400000 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 125400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238109760).

125400000 is an abundant number, since it is smaller than the sum of its proper divisors (350819520).

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

125400000 is an equidigital number, since it uses as much as digits as its factorization.

125400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 125400000 is about 11198.2141433355. The cubic root of 125400000 is about 500.5327654536.

Adding to 125400000 its reverse (4521), we get a palindrome (125404521).

The spelling of 125400000 in words is "one hundred twenty-five million, four hundred thousand".