102443907 has 8 divisors (see below), whose sum is σ = 137509200. Its totient is φ = 67837280.

The previous prime is 102443899. The next prime is 102443917. The reversal of 102443907 is 709344201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102443907 - 2³ = 102443899 is a prime.

It is a super-3 number, since 3×102443907³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (102443917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114144 + ... + 115037.

It is an arithmetic number, because the mean of its divisors is an integer number (17188650).

Almost surely, 2^102443907 is an apocalyptic number.

102443907 is a deficient number, since it is larger than the sum of its proper divisors (35065293).

102443907 is a wasteful number, since it uses less digits than its factorization.

102443907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229333.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 102443907 is about 10121.4577507393. The cubic root of 102443907 is about 467.9096956670.

The spelling of 102443907 in words is "one hundred two million, four hundred forty-three thousand, nine hundred seven".