102434421 has 8 divisors (see below), whose sum is σ = 136645024. Its totient is φ = 68256720.

The previous prime is 102434419. The next prime is 102434473. The reversal of 102434421 is 124434201.

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

It is not a de Polignac number, because 102434421 - 2¹ = 102434419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102438421) 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, 306 + ... + 14316.

It is an arithmetic number, because the mean of its divisors is an integer number (17080628).

Almost surely, 2^102434421 is an apocalyptic number.

It is an amenable number.

102434421 is a deficient number, since it is larger than the sum of its proper divisors (34210603).

102434421 is a wasteful number, since it uses less digits than its factorization.

102434421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16451.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 102434421 is about 10120.9891315029. The cubic root of 102434421 is about 467.8952528741.

Adding to 102434421 its reverse (124434201), we get a palindrome (226868622).

The spelling of 102434421 in words is "one hundred two million, four hundred thirty-four thousand, four hundred twenty-one".