125798401 has 2 divisors, whose sum is σ = 125798402. Its totient is φ = 125798400.

The previous prime is 125798389. The next prime is 125798467. The reversal of 125798401 is 104897521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107744400 + 18054001 = 10380^2 + 4249^2 .

It is a cyclic number.

It is not a de Polignac number, because 125798401 - 2¹¹ = 125796353 is a prime.

It is not a weakly prime, because it can be changed into another prime (125798501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62899200 + 62899201.

It is an arithmetic number, because the mean of its divisors is an integer number (62899201).

Almost surely, 2^125798401 is an apocalyptic number.

It is an amenable number.

125798401 is a deficient number, since it is larger than the sum of its proper divisors (1).

125798401 is an equidigital number, since it uses as much as digits as its factorization.

125798401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 125798401 is about 11215.9886323052. The cubic root of 125798401 is about 501.0622762069.

The spelling of 125798401 in words is "one hundred twenty-five million, seven hundred ninety-eight thousand, four hundred one".