125865853 has 2 divisors, whose sum is σ = 125865854. Its totient is φ = 125865852.

The previous prime is 125865833. The next prime is 125865863. The reversal of 125865853 is 358568521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110208004 + 15657849 = 10498^2 + 3957^2 .

It is a cyclic number.

It is not a de Polignac number, because 125865853 - 2¹⁷ = 125734781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125865833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62932926 + 62932927.

It is an arithmetic number, because the mean of its divisors is an integer number (62932927).

Almost surely, 2^125865853 is an apocalyptic number.

It is an amenable number.

125865853 is a deficient number, since it is larger than the sum of its proper divisors (1).

125865853 is an equidigital number, since it uses as much as digits as its factorization.

125865853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288000, while the sum is 43.

The square root of 125865853 is about 11218.9951867358. The cubic root of 125865853 is about 501.1518152724.

The spelling of 125865853 in words is "one hundred twenty-five million, eight hundred sixty-five thousand, eight hundred fifty-three".