125219837 has 2 divisors, whose sum is σ = 125219838. Its totient is φ = 125219836.

The previous prime is 125219813. The next prime is 125219917. The reversal of 125219837 is 738912521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104325796 + 20894041 = 10214^2 + 4571^2 .

It is a cyclic number.

It is not a de Polignac number, because 125219837 - 2¹⁶ = 125154301 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125219837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125210837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62609918 + 62609919.

It is an arithmetic number, because the mean of its divisors is an integer number (62609919).

Almost surely, 2^125219837 is an apocalyptic number.

It is an amenable number.

125219837 is a deficient number, since it is larger than the sum of its proper divisors (1).

125219837 is an equidigital number, since it uses as much as digits as its factorization.

125219837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 38.

The square root of 125219837 is about 11190.1669782001. The cubic root of 125219837 is about 500.2929443337.

The spelling of 125219837 in words is "one hundred twenty-five million, two hundred nineteen thousand, eight hundred thirty-seven".