125602420 has 24 divisors (see below), whose sum is σ = 270895464. Its totient is φ = 48882816.

The previous prime is 125602417. The next prime is 125602427. The reversal of 125602420 is 24206521.

It can be written as a sum of positive squares in 4 ways, for example, as 8832784 + 116769636 = 2972^2 + 10806^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125602391 and 125602400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125602427) 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, 84127 + ... + 85606.

It is an arithmetic number, because the mean of its divisors is an integer number (11287311).

Almost surely, 2^125602420 is an apocalyptic number.

125602420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125602420 is an abundant number, since it is smaller than the sum of its proper divisors (145293044).

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

125602420 is a wasteful number, since it uses less digits than its factorization.

125602420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169779 (or 169777 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 125602420 is about 11207.2485472573. The cubic root of 125602420 is about 500.8019397643.

Adding to 125602420 its reverse (24206521), we get a palindrome (149808941).

The spelling of 125602420 in words is "one hundred twenty-five million, six hundred two thousand, four hundred twenty".