125220163 has 2 divisors, whose sum is σ = 125220164. Its totient is φ = 125220162.

The previous prime is 125220133. The next prime is 125220167. The reversal of 125220163 is 361022521.

It is a strong prime.

It is an emirp because it is prime and its reverse (361022521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125220163 - 2⁵ = 125220131 is a prime.

It is not a weakly prime, because it can be changed into another prime (125220167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62610081 + 62610082.

It is an arithmetic number, because the mean of its divisors is an integer number (62610082).

Almost surely, 2^125220163 is an apocalyptic number.

125220163 is a deficient number, since it is larger than the sum of its proper divisors (1).

125220163 is an equidigital number, since it uses as much as digits as its factorization.

125220163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 125220163 is about 11190.1815445506. The cubic root of 125220163 is about 500.2933784911.

Adding to 125220163 its reverse (361022521), we get a palindrome (486242684).

The spelling of 125220163 in words is "one hundred twenty-five million, two hundred twenty thousand, one hundred sixty-three".