102103449 has 16 divisors (see below), whose sum is σ = 156291072. Its totient is φ = 58080528.

The previous prime is 102103427. The next prime is 102103451. The reversal of 102103449 is 944301201.

It is not a de Polignac number, because 102103449 - 2⁹ = 102102937 is a prime.

It is a super-2 number, since 2×102103449² = 20850228595391202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102103409) 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, 6219 + ... + 15584.

It is an arithmetic number, because the mean of its divisors is an integer number (9768192).

Almost surely, 2^102103449 is an apocalyptic number.

It is an amenable number.

102103449 is a deficient number, since it is larger than the sum of its proper divisors (54187623).

102103449 is a wasteful number, since it uses less digits than its factorization.

102103449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22036.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 102103449 is about 10104.6251291179. The cubic root of 102103449 is about 467.3907762414.

The spelling of 102103449 in words is "one hundred two million, one hundred three thousand, four hundred forty-nine".