125447801 has 2 divisors, whose sum is σ = 125447802. Its totient is φ = 125447800.

The previous prime is 125447779. The next prime is 125447837. The reversal of 125447801 is 108744521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97990201 + 27457600 = 9899^2 + 5240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125447801 is a prime.

It is not a weakly prime, because it can be changed into another prime (125447401) by changing a digit.

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 as a sum of consecutive naturals, namely, 62723900 + 62723901.

It is an arithmetic number, because the mean of its divisors is an integer number (62723901).

Almost surely, 2^125447801 is an apocalyptic number.

It is an amenable number.

125447801 is a deficient number, since it is larger than the sum of its proper divisors (1).

125447801 is an equidigital number, since it uses as much as digits as its factorization.

125447801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 125447801 is about 11200.3482535143. The cubic root of 125447801 is about 500.5963564352.

The spelling of 125447801 in words is "one hundred twenty-five million, four hundred forty-seven thousand, eight hundred one".