125887805 has 8 divisors (see below), whose sum is σ = 159951672. Its totient is φ = 94786048.

The previous prime is 125887777. The next prime is 125887813. The reversal of 125887805 is 508788521.

It can be written as a sum of positive squares in 4 ways, for example, as 917764 + 124970041 = 958^2 + 11179^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125887805 - 2¹⁰ = 125886781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740432 + ... + 740601.

It is an arithmetic number, because the mean of its divisors is an integer number (19993959).

Almost surely, 2^125887805 is an apocalyptic number.

It is an amenable number.

125887805 is a deficient number, since it is larger than the sum of its proper divisors (34063867).

125887805 is a wasteful number, since it uses less digits than its factorization.

125887805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481055.

The product of its (nonzero) digits is 179200, while the sum is 44.

The square root of 125887805 is about 11219.9734848172. The cubic root of 125887805 is about 501.1809485252.

The spelling of 125887805 in words is "one hundred twenty-five million, eight hundred eighty-seven thousand, eight hundred five".