125225099 has 2 divisors, whose sum is σ = 125225100.
Its totient is φ = 125225098.
The previous prime is 125225071. The next prime is 125225137. The reversal of 125225099 is 990522521.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 125225099 - 28 = 125224843 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (125225059) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62612549 + 62612550.
It is an arithmetic number, because the mean of its divisors is an integer number (62612550).
Almost surely, 2125225099 is an apocalyptic number.
125225099 is a deficient number, since it is larger than the sum of its proper divisors (1).
125225099 is an equidigital number, since it uses as much as digits as its factorization.
125225099 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 16200, while the sum is 35.
The square root of 125225099 is about 11190.4020928651.
The cubic root of 125225099 is about 500.2999520216.
The spelling of 125225099 in words is "one hundred twenty-five million, two hundred twenty-five thousand, ninety-nine".