102493439 has 2 divisors, whose sum is σ = 102493440. Its totient is φ = 102493438.

The previous prime is 102493427. The next prime is 102493507. The reversal of 102493439 is 934394201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102493439 - 2¹⁶ = 102427903 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 102493399 and 102493408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102493739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51246719 + 51246720.

It is an arithmetic number, because the mean of its divisors is an integer number (51246720).

Almost surely, 2^102493439 is an apocalyptic number.

102493439 is a deficient number, since it is larger than the sum of its proper divisors (1).

102493439 is an equidigital number, since it uses as much as digits as its factorization.

102493439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 102493439 is about 10123.9043357788. The cubic root of 102493439 is about 467.9850955270.

The spelling of 102493439 in words is "one hundred two million, four hundred ninety-three thousand, four hundred thirty-nine".