125541636 has 48 divisors (see below), whose sum is σ = 333462528. Its totient is φ = 36388000.

The previous prime is 125541541. The next prime is 125541649. The reversal of 125541636 is 636145521.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 125541597 and 125541606.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17640 + ... + 23711.

It is an arithmetic number, because the mean of its divisors is an integer number (6947136).

Almost surely, 2^125541636 is an apocalyptic number.

It is an amenable number.

125541636 is an abundant number, since it is smaller than the sum of its proper divisors (207920892).

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

125541636 is a wasteful number, since it uses less digits than its factorization.

125541636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41392 (or 41390 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 125541636 is about 11204.5364027255. The cubic root of 125541636 is about 500.7211407454.

The spelling of 125541636 in words is "one hundred twenty-five million, five hundred forty-one thousand, six hundred thirty-six".