125420428 has 24 divisors (see below), whose sum is σ = 251086752. Its totient is φ = 53698944.

The previous prime is 125420423. The next prime is 125420429. The reversal of 125420428 is 824024521.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 125420396 and 125420405.

It is not an unprimeable number, because it can be changed into a prime (125420423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43776 + ... + 46552.

It is an arithmetic number, because the mean of its divisors is an integer number (10461948).

Almost surely, 2^125420428 is an apocalyptic number.

It is an amenable number.

125420428 is an abundant number, since it is smaller than the sum of its proper divisors (125666324).

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

125420428 is a wasteful number, since it uses less digits than its factorization.

125420428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401 (or 4399 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 125420428 is about 11199.1262159152. The cubic root of 125420428 is about 500.5599433595.

Adding to 125420428 its reverse (824024521), we get a palindrome (949444949).

The spelling of 125420428 in words is "one hundred twenty-five million, four hundred twenty thousand, four hundred twenty-eight".