102144441 has 8 divisors (see below), whose sum is σ = 155648704. Its totient is φ = 58368240.

The previous prime is 102144421. The next prime is 102144443. The reversal of 102144441 is 144441201.

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

It is not a de Polignac number, because 102144441 - 2⁶ = 102144377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 4864021 = 102144441 / (1 + 0 + 2 + 1 + 4 + 4 + 4 + 4 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102144443) 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, 2431990 + ... + 2432031.

It is an arithmetic number, because the mean of its divisors is an integer number (19456088).

Almost surely, 2^102144441 is an apocalyptic number.

It is an amenable number.

102144441 is a deficient number, since it is larger than the sum of its proper divisors (53504263).

102144441 is an equidigital number, since it uses as much as digits as its factorization.

102144441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864031.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 102144441 is about 10106.6533036411. The cubic root of 102144441 is about 467.4533164705.

Adding to 102144441 its reverse (144441201), we get a palindrome (246585642).

The spelling of 102144441 in words is "one hundred two million, one hundred forty-four thousand, four hundred forty-one".