999069125 has 16 divisors (see below), whose sum is σ = 1267980480. Its totient is φ = 785702800.

The previous prime is 999069121. The next prime is 999069131. The reversal of 999069125 is 521960999.

It is not a de Polignac number, because 999069125 - 2² = 999069121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999069121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60359 + ... + 75108.

It is an arithmetic number, because the mean of its divisors is an integer number (79248780).

Almost surely, 2^999069125 is an apocalyptic number.

It is an amenable number.

999069125 is a deficient number, since it is larger than the sum of its proper divisors (268911355).

999069125 is a wasteful number, since it uses less digits than its factorization.

999069125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135541 (or 135531 counting only the distinct ones).

The product of its (nonzero) digits is 393660, while the sum is 50.

The square root of 999069125 is about 31608.0547487504. The cubic root of 999069125 is about 999.6896120026.

The spelling of 999069125 in words is "nine hundred ninety-nine million, sixty-nine thousand, one hundred twenty-five".