125686045 has 16 divisors (see below), whose sum is σ = 159157440. Its totient is φ = 95019264.

The previous prime is 125686031. The next prime is 125686061. The reversal of 125686045 is 540686521.

It is a cyclic number.

It is not a de Polignac number, because 125686045 - 2¹¹ = 125683997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125685995 and 125686013.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 42949 + ... + 45781.

It is an arithmetic number, because the mean of its divisors is an integer number (9947340).

Almost surely, 2^125686045 is an apocalyptic number.

It is an amenable number.

125686045 is a deficient number, since it is larger than the sum of its proper divisors (33471395).

125686045 is a wasteful number, since it uses less digits than its factorization.

125686045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3324.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 125686045 is about 11210.9787708300. The cubic root of 125686045 is about 500.9130583008.

It can be divided in two parts, 1256860 and 45, that added together give a triangular number (1256905 = T₁₅₈₅).

The spelling of 125686045 in words is "one hundred twenty-five million, six hundred eighty-six thousand, forty-five".