125002271 has 2 divisors, whose sum is σ = 125002272. Its totient is φ = 125002270.

The previous prime is 125002231. The next prime is 125002279. The reversal of 125002271 is 172200521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125002271 - 2¹⁸ = 124740127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125002279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62501135 + 62501136.

It is an arithmetic number, because the mean of its divisors is an integer number (62501136).

Almost surely, 2^125002271 is an apocalyptic number.

125002271 is a deficient number, since it is larger than the sum of its proper divisors (1).

125002271 is an equidigital number, since it uses as much as digits as its factorization.

125002271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 125002271 is about 11180.4414492452. The cubic root of 125002271 is about 500.0030279817.

Adding to 125002271 its reverse (172200521), we get a palindrome (297202792).

The spelling of 125002271 in words is "one hundred twenty-five million, two thousand, two hundred seventy-one".