102505433 has 2 divisors, whose sum is σ = 102505434. Its totient is φ = 102505432.

The previous prime is 102505397. The next prime is 102505451. The reversal of 102505433 is 334505201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77933584 + 24571849 = 8828^2 + 4957^2 .

It is a cyclic number.

It is not a de Polignac number, because 102505433 - 2⁶ = 102505369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102505399 and 102505408.

It is not a weakly prime, because it can be changed into another prime (102505463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51252716 + 51252717.

It is an arithmetic number, because the mean of its divisors is an integer number (51252717).

Almost surely, 2^102505433 is an apocalyptic number.

It is an amenable number.

102505433 is a deficient number, since it is larger than the sum of its proper divisors (1).

102505433 is an equidigital number, since it uses as much as digits as its factorization.

102505433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 102505433 is about 10124.4966788478. The cubic root of 102505433 is about 468.0033496850.

The spelling of 102505433 in words is "one hundred two million, five hundred five thousand, four hundred thirty-three".