125533901 has 2 divisors, whose sum is σ = 125533902. Its totient is φ = 125533900.

The previous prime is 125533853. The next prime is 125533921. The reversal of 125533901 is 109335521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86471401 + 39062500 = 9299^2 + 6250^2 .

It is a cyclic number.

It is not a de Polignac number, because 125533901 - 2¹⁰ = 125532877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125533921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62766950 + 62766951.

It is an arithmetic number, because the mean of its divisors is an integer number (62766951).

Almost surely, 2^125533901 is an apocalyptic number.

It is an amenable number.

125533901 is a deficient number, since it is larger than the sum of its proper divisors (1).

125533901 is an equidigital number, since it uses as much as digits as its factorization.

125533901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 125533901 is about 11204.1912247159. The cubic root of 125533901 is about 500.7108568860.

The spelling of 125533901 in words is "one hundred twenty-five million, five hundred thirty-three thousand, nine hundred one".