102971903 has 4 divisors (see below), whose sum is σ = 103269000. Its totient is φ = 102674808.

The previous prime is 102971893. The next prime is 102971923. The reversal of 102971903 is 309179201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102971903 - 2¹² = 102967807 is a prime.

It is a super-3 number, since 3×102971903³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102971903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102971923) 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 in 3 ways as a sum of consecutive naturals, for example, 148028 + ... + 148721.

It is an arithmetic number, because the mean of its divisors is an integer number (25817250).

Almost surely, 2^102971903 is an apocalyptic number.

102971903 is a deficient number, since it is larger than the sum of its proper divisors (297097).

102971903 is an equidigital number, since it uses as much as digits as its factorization.

102971903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297096.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 102971903 is about 10147.5072308425. The cubic root of 102971903 is about 468.7121875751.

The spelling of 102971903 in words is "one hundred two million, nine hundred seventy-one thousand, nine hundred three".