999999102 has 32 divisors (see below), whose sum is σ = 2067980544. Its totient is φ = 322155200.

The previous prime is 999999067. The next prime is 999999103. The reversal of 999999102 is 201999999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999999103) 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 15 ways as a sum of consecutive naturals, for example, 7327 + ... + 45317.

It is an arithmetic number, because the mean of its divisors is an integer number (64624392).

Almost surely, 2^999999102 is an apocalyptic number.

999999102 is an abundant number, since it is smaller than the sum of its proper divisors (1067981442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999999102 is a wasteful number, since it uses less digits than its factorization.

999999102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38144.

The product of its (nonzero) digits is 1062882, while the sum is 57.

The square root of 999999102 is about 31622.7624030539. The cubic root of 999999102 is about 999.9997006666. Note that the first 3 decimals are identical.

The spelling of 999999102 in words is "nine hundred ninety-nine million, nine hundred ninety-nine thousand, one hundred two".