125169099 has 8 divisors (see below), whose sum is σ = 182064192. Its totient is φ = 75860040.

The previous prime is 125169097. The next prime is 125169139. The reversal of 125169099 is 990961521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125169099 - 2¹ = 125169097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125169099.

It is not an unprimeable number, because it can be changed into a prime (125169097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1896469 + ... + 1896534.

It is an arithmetic number, because the mean of its divisors is an integer number (22758024).

Almost surely, 2^125169099 is an apocalyptic number.

125169099 is a deficient number, since it is larger than the sum of its proper divisors (56895093).

125169099 is a wasteful number, since it uses less digits than its factorization.

125169099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3793017.

The product of its (nonzero) digits is 43740, while the sum is 42.

The square root of 125169099 is about 11187.8996688387. The cubic root of 125169099 is about 500.2253637404.

The spelling of 125169099 in words is "one hundred twenty-five million, one hundred sixty-nine thousand, ninety-nine".