125241251 has 2 divisors, whose sum is σ = 125241252. Its totient is φ = 125241250.

The previous prime is 125241203. The next prime is 125241257. The reversal of 125241251 is 152142521.

It is a strong prime.

It is an emirp because it is prime and its reverse (152142521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125241251 - 2¹⁴ = 125224867 is a prime.

It is equal to p_7123073 and since 125241251 and 7123073 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (125241257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62620625 + 62620626.

It is an arithmetic number, because the mean of its divisors is an integer number (62620626).

Almost surely, 2^125241251 is an apocalyptic number.

125241251 is a deficient number, since it is larger than the sum of its proper divisors (1).

125241251 is an equidigital number, since it uses as much as digits as its factorization.

125241251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 800, while the sum is 23.

The square root of 125241251 is about 11191.1237594801. The cubic root of 125241251 is about 500.3214612810.

Adding to 125241251 its reverse (152142521), we get a palindrome (277383772).

The spelling of 125241251 in words is "one hundred twenty-five million, two hundred forty-one thousand, two hundred fifty-one".