125299 has 2 divisors, whose sum is σ = 125300. Its totient is φ = 125298.

The previous prime is 125287. The next prime is 125303. The reversal of 125299 is 992521.

125299 = 142² + 143² + ... + 147².

It is a strong prime.

It is an emirp because it is prime and its reverse (992521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125299 is a prime.

It is not a weakly prime, because it can be changed into another prime (125219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62649 + 62650.

It is an arithmetic number, because the mean of its divisors is an integer number (62650).

2¹²⁵²⁹⁹ is an apocalyptic number.

125299 is a deficient number, since it is larger than the sum of its proper divisors (1).

125299 is an equidigital number, since it uses as much as digits as its factorization.

125299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 28.

The square root of 125299 is about 353.9759878862. The cubic root of 125299 is about 50.0398349218.

It can be divided in two parts, 125 and 299, that added together give a palindrome (424).

The spelling of 125299 in words is "one hundred twenty-five thousand, two hundred ninety-nine".