102444253 has 4 divisors (see below), whose sum is σ = 102470400. Its totient is φ = 102418108.

The previous prime is 102444247. The next prime is 102444259. The reversal of 102444253 is 352444201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 352444201 = 79 ⋅4461319.

It is an interprime number because it is at equal distance from previous prime (102444247) and next prime (102444259).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102444253 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 (102444259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5875 + ... + 15472.

It is an arithmetic number, because the mean of its divisors is an integer number (25617600).

Almost surely, 2^102444253 is an apocalyptic number.

It is an amenable number.

102444253 is a deficient number, since it is larger than the sum of its proper divisors (26147).

102444253 is an equidigital number, since it uses as much as digits as its factorization.

102444253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26146.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 102444253 is about 10121.4748431244. The cubic root of 102444253 is about 467.9102224482.

Adding to 102444253 its reverse (352444201), we get a palindrome (454888454).

The spelling of 102444253 in words is "one hundred two million, four hundred forty-four thousand, two hundred fifty-three".