102439411 has 2 divisors, whose sum is σ = 102439412. Its totient is φ = 102439410.

The previous prime is 102439391. The next prime is 102439417. The reversal of 102439411 is 114934201.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (114934201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102439411 - 2²¹ = 100342259 is a prime.

It is not a weakly prime, because it can be changed into another prime (102439417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51219705 + 51219706.

It is an arithmetic number, because the mean of its divisors is an integer number (51219706).

Almost surely, 2^102439411 is an apocalyptic number.

102439411 is a deficient number, since it is larger than the sum of its proper divisors (1).

102439411 is an equidigital number, since it uses as much as digits as its factorization.

102439411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 102439411 is about 10121.2356459081. The cubic root of 102439411 is about 467.9028504485.

The spelling of 102439411 in words is "one hundred two million, four hundred thirty-nine thousand, four hundred eleven".