102444521 has 8 divisors (see below), whose sum is σ = 103893504. Its totient is φ = 101004480.

The previous prime is 102444469. The next prime is 102444547. The reversal of 102444521 is 125444201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102444521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102444581) 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, 22760 + ... + 26886.

It is an arithmetic number, because the mean of its divisors is an integer number (12986688).

Almost surely, 2^102444521 is an apocalyptic number.

It is an amenable number.

102444521 is a deficient number, since it is larger than the sum of its proper divisors (1448983).

102444521 is a wasteful number, since it uses less digits than its factorization.

102444521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4471.

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

The square root of 102444521 is about 10121.4880822930. The cubic root of 102444521 is about 467.9106304744.

Adding to 102444521 its reverse (125444201), we get a palindrome (227888722).

It can be divided in two parts, 1024 and 44521, that multiplied together give a square (45589504 = 6752²).

The spelling of 102444521 in words is "one hundred two million, four hundred forty-four thousand, five hundred twenty-one".