125021036 has 12 divisors (see below), whose sum is σ = 250042128. Its totient is φ = 53580432.

The previous prime is 125021027. The next prime is 125021051. The reversal of 125021036 is 630120521.

125021036 is an admirable number.

It is a super-3 number, since 3×125021036³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125020999 and 125021017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2232491 + ... + 2232546.

It is an arithmetic number, because the mean of its divisors is an integer number (20836844).

Almost surely, 2^125021036 is an apocalyptic number.

It is an amenable number.

125021036 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

125021036 is a wasteful number, since it uses less digits than its factorization.

125021036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4465048 (or 4465046 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 125021036 is about 11181.2806064422. The cubic root of 125021036 is about 500.0280464268.

Adding to 125021036 its reverse (630120521), we get a palindrome (755141557).

The spelling of 125021036 in words is "one hundred twenty-five million, twenty-one thousand, thirty-six".