209192103 has 12 divisors (see below), whose sum is σ = 302302728. Its totient is φ = 139398480.

The previous prime is 209192099. The next prime is 209192143. The reversal of 209192103 is 301291902.

It is not a de Polignac number, because 209192103 - 2² = 209192099 is a prime.

It is a super-2 number, since 2×209192103² = 87522671915125218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209192143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24976 + ... + 32282.

It is an arithmetic number, because the mean of its divisors is an integer number (25191894).

Almost surely, 2^209192103 is an apocalyptic number.

209192103 is a deficient number, since it is larger than the sum of its proper divisors (93110625).

209192103 is a wasteful number, since it uses less digits than its factorization.

209192103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10494 (or 10491 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 209192103 is about 14463.4747899666. The cubic root of 209192103 is about 593.6289813115.

The spelling of 209192103 in words is "two hundred nine million, one hundred ninety-two thousand, one hundred three".