102402001 has 12 divisors (see below), whose sum is σ = 116724720. Its totient is φ = 89547120.

The previous prime is 102401953. The next prime is 102402007. The reversal of 102402001 is 100204201.

It is not a de Polignac number, because 102402001 - 2²¹ = 100304849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102402007) 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 11 ways as a sum of consecutive naturals, for example, 12735 + ... + 19156.

It is an arithmetic number, because the mean of its divisors is an integer number (9727060).

Almost surely, 2^102402001 is an apocalyptic number.

It is an amenable number.

102402001 is a deficient number, since it is larger than the sum of its proper divisors (14322719).

102402001 is a wasteful number, since it uses less digits than its factorization.

102402001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31936 (or 31923 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 102402001 is about 10119.3873826433. The cubic root of 102402001 is about 467.8458854689.

Adding to 102402001 its reverse (100204201), we get a palindrome (202606202).

The spelling of 102402001 in words is "one hundred two million, four hundred two thousand, one".