125405430 has 64 divisors (see below), whose sum is σ = 332563968. Its totient is φ = 30103040.

The previous prime is 125405419. The next prime is 125405437. The reversal of 125405430 is 34504521.

It is a self number, because there is not a number n which added to its sum of digits gives 125405430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125405437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6385 + ... + 17075.

It is an arithmetic number, because the mean of its divisors is an integer number (5196312).

Almost surely, 2^125405430 is an apocalyptic number.

125405430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 125405430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166281984).

125405430 is an abundant number, since it is smaller than the sum of its proper divisors (207158538).

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

125405430 is a wasteful number, since it uses less digits than its factorization.

125405430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10741.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 125405430 is about 11198.4565900842. The cubic root of 125405430 is about 500.5399899451.

Adding to 125405430 its reverse (34504521), we get a palindrome (159909951).

Subtracting from 125405430 its reverse (34504521), we obtain a palindrome (90900909).

The spelling of 125405430 in words is "one hundred twenty-five million, four hundred five thousand, four hundred thirty".