102161407 has 2 divisors, whose sum is σ = 102161408. Its totient is φ = 102161406.

The previous prime is 102161401. The next prime is 102161443. The reversal of 102161407 is 704161201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102161407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102161401) 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, 51080703 + 51080704.

It is an arithmetic number, because the mean of its divisors is an integer number (51080704).

Almost surely, 2^102161407 is an apocalyptic number.

102161407 is a deficient number, since it is larger than the sum of its proper divisors (1).

102161407 is an equidigital number, since it uses as much as digits as its factorization.

102161407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 102161407 is about 10107.4926168660. The cubic root of 102161407 is about 467.4791960773.

The spelling of 102161407 in words is "one hundred two million, one hundred sixty-one thousand, four hundred seven".