102406253 has 2 divisors, whose sum is σ = 102406254. Its totient is φ = 102406252.

The previous prime is 102406247. The next prime is 102406289. The reversal of 102406253 is 352604201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53027524 + 49378729 = 7282^2 + 7027^2 .

It is an emirp because it is prime and its reverse (352604201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102406253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102406553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51203126 + 51203127.

It is an arithmetic number, because the mean of its divisors is an integer number (51203127).

Almost surely, 2^102406253 is an apocalyptic number.

It is an amenable number.

102406253 is a deficient number, since it is larger than the sum of its proper divisors (1).

102406253 is an equidigital number, since it uses as much as digits as its factorization.

102406253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 102406253 is about 10119.5974722318. The cubic root of 102406253 is about 467.8523607759.

The spelling of 102406253 in words is "one hundred two million, four hundred six thousand, two hundred fifty-three".