125637241 has 2 divisors, whose sum is σ = 125637242. Its totient is φ = 125637240.

The previous prime is 125637229. The next prime is 125637283. The reversal of 125637241 is 142736521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80478841 + 45158400 = 8971^2 + 6720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125637241 is a prime.

It is not a weakly prime, because it can be changed into another prime (125637221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62818620 + 62818621.

It is an arithmetic number, because the mean of its divisors is an integer number (62818621).

Almost surely, 2^125637241 is an apocalyptic number.

It is an amenable number.

125637241 is a deficient number, since it is larger than the sum of its proper divisors (1).

125637241 is an equidigital number, since it uses as much as digits as its factorization.

125637241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 125637241 is about 11208.8019431160. The cubic root of 125637241 is about 500.8482149159.

The spelling of 125637241 in words is "one hundred twenty-five million, six hundred thirty-seven thousand, two hundred forty-one".