125122147 has 2 divisors, whose sum is σ = 125122148. Its totient is φ = 125122146.

The previous prime is 125122117. The next prime is 125122157. The reversal of 125122147 is 741221521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125122147 - 2¹⁵ = 125089379 is a prime.

It is not a weakly prime, because it can be changed into another prime (125122117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62561073 + 62561074.

It is an arithmetic number, because the mean of its divisors is an integer number (62561074).

Almost surely, 2^125122147 is an apocalyptic number.

125122147 is a deficient number, since it is larger than the sum of its proper divisors (1).

125122147 is an equidigital number, since it uses as much as digits as its factorization.

125122147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1120, while the sum is 25.

The square root of 125122147 is about 11185.8011335800. The cubic root of 125122147 is about 500.1628096470.

Adding to 125122147 its reverse (741221521), we get a palindrome (866343668).

The spelling of 125122147 in words is "one hundred twenty-five million, one hundred twenty-two thousand, one hundred forty-seven".