1250125013 has 2 divisors, whose sum is σ = 1250125014. Its totient is φ = 1250125012.

The previous prime is 1250124983. The next prime is 1250125027. The reversal of 1250125013 is 3105210521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 722641924 + 527483089 = 26882^2 + 22967^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250125013 - 2¹² = 1250120917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1250125213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625062506 + 625062507.

It is an arithmetic number, because the mean of its divisors is an integer number (625062507).

Almost surely, 2^1250125013 is an apocalyptic number.

It is an amenable number.

1250125013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250125013 is an equidigital number, since it uses as much as digits as its factorization.

1250125013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1250125013 is about 35357.1069659269. The cubic root of 1250125013 is about 1077.2532547980.

Adding to 1250125013 its reverse (3105210521), we get a palindrome (4355335534).

The spelling of 1250125013 in words is "one billion, two hundred fifty million, one hundred twenty-five thousand, thirteen".