250471121 has 2 divisors, whose sum is σ = 250471122. Its totient is φ = 250471120.

The previous prime is 250471073. The next prime is 250471141. The reversal of 250471121 is 121174052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246144721 + 4326400 = 15689^2 + 2080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250471121 is a prime.

It is not a weakly prime, because it can be changed into another prime (250471141) 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, 125235560 + 125235561.

It is an arithmetic number, because the mean of its divisors is an integer number (125235561).

Almost surely, 2^250471121 is an apocalyptic number.

It is an amenable number.

250471121 is a deficient number, since it is larger than the sum of its proper divisors (1).

250471121 is an equidigital number, since it uses as much as digits as its factorization.

250471121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 250471121 is about 15826.2794427496. The cubic root of 250471121 is about 630.3559934766.

The spelling of 250471121 in words is "two hundred fifty million, four hundred seventy-one thousand, one hundred twenty-one".