102725423239 has 2 divisors, whose sum is σ = 102725423240. Its totient is φ = 102725423238.

The previous prime is 102725423221. The next prime is 102725423287. The reversal of 102725423239 is 932324527201.

It is a weak prime.

It is an emirp because it is prime and its reverse (932324527201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102725423239 - 2⁷ = 102725423111 is a prime.

It is a super-2 number, since 2×102725423239² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102725423219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51362711619 + 51362711620.

It is an arithmetic number, because the mean of its divisors is an integer number (51362711620).

Almost surely, 2^102725423239 is an apocalyptic number.

102725423239 is a deficient number, since it is larger than the sum of its proper divisors (1).

102725423239 is an equidigital number, since it uses as much as digits as its factorization.

102725423239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 102725423239 in words is "one hundred two billion, seven hundred twenty-five million, four hundred twenty-three thousand, two hundred thirty-nine".