102444747 has 8 divisors (see below), whose sum is σ = 136966656. Its totient is φ = 68109672.

The previous prime is 102444731. The next prime is 102444757. The reversal of 102444747 is 747444201.

It is a happy number.

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

It is not a de Polignac number, because 102444747 - 2⁴ = 102444731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102444757) 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, 45423 + ... + 47624.

It is an arithmetic number, because the mean of its divisors is an integer number (17120832).

Almost surely, 2^102444747 is an apocalyptic number.

102444747 is a deficient number, since it is larger than the sum of its proper divisors (34521909).

102444747 is an equidigital number, since it uses as much as digits as its factorization.

102444747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93417.

The product of its (nonzero) digits is 25088, while the sum is 33.

The square root of 102444747 is about 10121.4992466531. The cubic root of 102444747 is about 467.9109745557.

Adding to 102444747 its reverse (747444201), we get a palindrome (849888948).

The spelling of 102444747 in words is "one hundred two million, four hundred forty-four thousand, seven hundred forty-seven".