125217263 has 2 divisors, whose sum is σ = 125217264. Its totient is φ = 125217262.

The previous prime is 125217187. The next prime is 125217269. The reversal of 125217263 is 362712521.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (362712521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125217263 - 2⁸ = 125217007 is a prime.

It is a super-2 number, since 2×125217263² = 31358725906422338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125217269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62608631 + 62608632.

It is an arithmetic number, because the mean of its divisors is an integer number (62608632).

Almost surely, 2^125217263 is an apocalyptic number.

125217263 is a deficient number, since it is larger than the sum of its proper divisors (1).

125217263 is an equidigital number, since it uses as much as digits as its factorization.

125217263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 125217263 is about 11190.0519659204. The cubic root of 125217263 is about 500.2895163282.

Adding to 125217263 its reverse (362712521), we get a palindrome (487929784).

The spelling of 125217263 in words is "one hundred twenty-five million, two hundred seventeen thousand, two hundred sixty-three".