102424491 has 24 divisors (see below), whose sum is σ = 164826480. Its totient is φ = 60854976.

The previous prime is 102424471. The next prime is 102424499. The reversal of 102424491 is 194424201.

It is a happy number.

It is not a de Polignac number, because 102424491 - 2⁷ = 102424363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102424499) 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 23 ways as a sum of consecutive naturals, for example, 11701 + ... + 18486.

It is an arithmetic number, because the mean of its divisors is an integer number (6867770).

Almost surely, 2^102424491 is an apocalyptic number.

102424491 is a deficient number, since it is larger than the sum of its proper divisors (62401989).

102424491 is a wasteful number, since it uses less digits than its factorization.

102424491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30235 (or 30232 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 102424491 is about 10120.4985549132. The cubic root of 102424491 is about 467.8801331193.

Adding to 102424491 its reverse (194424201), we get a palindrome (296848692).

The spelling of 102424491 in words is "one hundred two million, four hundred twenty-four thousand, four hundred ninety-one".