125494099 has 2 divisors, whose sum is σ = 125494100. Its totient is φ = 125494098.

The previous prime is 125494097. The next prime is 125494111. The reversal of 125494099 is 990494521.

It is a weak prime.

It is an emirp because it is prime and its reverse (990494521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125494099 - 2¹ = 125494097 is a prime.

Together with 125494097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (125494093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62747049 + 62747050.

It is an arithmetic number, because the mean of its divisors is an integer number (62747050).

Almost surely, 2^125494099 is an apocalyptic number.

125494099 is a deficient number, since it is larger than the sum of its proper divisors (1).

125494099 is an equidigital number, since it uses as much as digits as its factorization.

125494099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 125494099 is about 11202.4148735886. The cubic root of 125494099 is about 500.6579325365.

The spelling of 125494099 in words is "one hundred twenty-five million, four hundred ninety-four thousand, ninety-nine".