102009903 has 8 divisors (see below), whose sum is σ = 136071600. Its totient is φ = 67977408.

The previous prime is 102009883. The next prime is 102009923. The reversal of 102009903 is 309900201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102009883) and next prime (102009923).

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

It is not a de Polignac number, because 102009903 - 2⁸ = 102009647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102009923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2883 + ... + 14571.

It is an arithmetic number, because the mean of its divisors is an integer number (17008950).

Almost surely, 2^102009903 is an apocalyptic number.

102009903 is a deficient number, since it is larger than the sum of its proper divisors (34061697).

102009903 is a wasteful number, since it uses less digits than its factorization.

102009903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14601.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 102009903 is about 10099.9951980187. The cubic root of 102009903 is about 467.2479932846.

The spelling of 102009903 in words is "one hundred two million, nine thousand, nine hundred three".