102489293 has 2 divisors, whose sum is σ = 102489294. Its totient is φ = 102489292.

The previous prime is 102489271. The next prime is 102489301. The reversal of 102489293 is 392984201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77668969 + 24820324 = 8813^2 + 4982^2 .

It is a cyclic number.

It is not a de Polignac number, because 102489293 - 2⁶ = 102489229 is a prime.

It is a Chen prime.

It is equal to p_5896631 and since 102489293 and 5896631 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102480293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51244646 + 51244647.

It is an arithmetic number, because the mean of its divisors is an integer number (51244647).

Almost surely, 2^102489293 is an apocalyptic number.

It is an amenable number.

102489293 is a deficient number, since it is larger than the sum of its proper divisors (1).

102489293 is an equidigital number, since it uses as much as digits as its factorization.

102489293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 102489293 is about 10123.6995708091. The cubic root of 102489293 is about 467.9787852292.

The spelling of 102489293 in words is "one hundred two million, four hundred eighty-nine thousand, two hundred ninety-three".