102559493 has 2 divisors, whose sum is σ = 102559494. Its totient is φ = 102559492.

The previous prime is 102559463. The next prime is 102559519. The reversal of 102559493 is 394955201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102556129 + 3364 = 10127^2 + 58^2 .

It is a cyclic number.

It is not a de Polignac number, because 102559493 - 2²⁶ = 35450629 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102559463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51279746 + 51279747.

It is an arithmetic number, because the mean of its divisors is an integer number (51279747).

Almost surely, 2^102559493 is an apocalyptic number.

It is an amenable number.

102559493 is a deficient number, since it is larger than the sum of its proper divisors (1).

102559493 is an equidigital number, since it uses as much as digits as its factorization.

102559493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 102559493 is about 10127.1660892868. The cubic root of 102559493 is about 468.0856081370.

The spelling of 102559493 in words is "one hundred two million, five hundred fifty-nine thousand, four hundred ninety-three".