125642227 has 2 divisors, whose sum is σ = 125642228. Its totient is φ = 125642226.

The previous prime is 125642213. The next prime is 125642263. The reversal of 125642227 is 722246521.

It is a weak prime.

It is an emirp because it is prime and its reverse (722246521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125642227 - 2¹⁵ = 125609459 is a prime.

It is not a weakly prime, because it can be changed into another prime (125642527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62821113 + 62821114.

It is an arithmetic number, because the mean of its divisors is an integer number (62821114).

Almost surely, 2^125642227 is an apocalyptic number.

125642227 is a deficient number, since it is larger than the sum of its proper divisors (1).

125642227 is an equidigital number, since it uses as much as digits as its factorization.

125642227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 125642227 is about 11209.0243554022. The cubic root of 125642227 is about 500.8548403298.

Adding to 125642227 its reverse (722246521), we get a palindrome (847888748).

The spelling of 125642227 in words is "one hundred twenty-five million, six hundred forty-two thousand, two hundred twenty-seven".