125148217 has 2 divisors, whose sum is σ = 125148218. Its totient is φ = 125148216.

The previous prime is 125148187. The next prime is 125148223. The reversal of 125148217 is 712841521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78074896 + 47073321 = 8836^2 + 6861^2 .

It is a cyclic number.

It is not a de Polignac number, because 125148217 - 2¹⁹ = 124623929 is a prime.

It is not a weakly prime, because it can be changed into another prime (125148227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62574108 + 62574109.

It is an arithmetic number, because the mean of its divisors is an integer number (62574109).

Almost surely, 2^125148217 is an apocalyptic number.

It is an amenable number.

125148217 is a deficient number, since it is larger than the sum of its proper divisors (1).

125148217 is an equidigital number, since it uses as much as digits as its factorization.

125148217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4480, while the sum is 31.

The square root of 125148217 is about 11186.9663895088. The cubic root of 125148217 is about 500.1975446086.

Adding to 125148217 its reverse (712841521), we get a palindrome (837989738).

The spelling of 125148217 in words is "one hundred twenty-five million, one hundred forty-eight thousand, two hundred seventeen".