102250424 has 8 divisors (see below), whose sum is σ = 191719560. Its totient is φ = 51125208.

The previous prime is 102250417. The next prime is 102250429. The reversal of 102250424 is 424052201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 102250396 and 102250405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102250429) 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 as a sum of consecutive naturals, namely, 6390644 + ... + 6390659.

It is an arithmetic number, because the mean of its divisors is an integer number (23964945).

Almost surely, 2^102250424 is an apocalyptic number.

It is an amenable number.

102250424 is a deficient number, since it is larger than the sum of its proper divisors (89469136).

102250424 is a wasteful number, since it uses less digits than its factorization.

102250424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12781309 (or 12781305 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 102250424 is about 10111.8951735073. The cubic root of 102250424 is about 467.6149339460.

The spelling of 102250424 in words is "one hundred two million, two hundred fifty thousand, four hundred twenty-four".