102544421 has 8 divisors (see below), whose sum is σ = 117312384. Its totient is φ = 87806160.

The previous prime is 102544417. The next prime is 102544451. The reversal of 102544421 is 124445201.

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 102544421 - 2² = 102544417 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102544451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551 + ... + 14331.

It is an arithmetic number, because the mean of its divisors is an integer number (14664048).

Almost surely, 2^102544421 is an apocalyptic number.

It is an amenable number.

102544421 is a deficient number, since it is larger than the sum of its proper divisors (14767963).

102544421 is a wasteful number, since it uses less digits than its factorization.

102544421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14851.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 102544421 is about 10126.4219248459. The cubic root of 102544421 is about 468.0626772777.

Adding to 102544421 its reverse (124445201), we get a palindrome (226989622).

The spelling of 102544421 in words is "one hundred two million, five hundred forty-four thousand, four hundred twenty-one".