102635497 has 2 divisors, whose sum is σ = 102635498. Its totient is φ = 102635496.

The previous prime is 102635479. The next prime is 102635509. The reversal of 102635497 is 794536201.

Together with previous prime (102635479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73085401 + 29550096 = 8549^2 + 5436^2 .

It is an emirp because it is prime and its reverse (794536201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102635497 is a prime.

It is not a weakly prime, because it can be changed into another prime (102635417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51317748 + 51317749.

It is an arithmetic number, because the mean of its divisors is an integer number (51317749).

Almost surely, 2^102635497 is an apocalyptic number.

It is an amenable number.

102635497 is a deficient number, since it is larger than the sum of its proper divisors (1).

102635497 is an equidigital number, since it uses as much as digits as its factorization.

102635497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 102635497 is about 10130.9178754938. The cubic root of 102635497 is about 468.2012080128.

The spelling of 102635497 in words is "one hundred two million, six hundred thirty-five thousand, four hundred ninety-seven".