102305971 has 4 divisors (see below), whose sum is σ = 102337200. Its totient is φ = 102274744.

The previous prime is 102305897. The next prime is 102306007. The reversal of 102305971 is 179503201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102305971 - 2⁹ = 102305459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102302971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10036 + ... + 17473.

It is an arithmetic number, because the mean of its divisors is an integer number (25584300).

Almost surely, 2^102305971 is an apocalyptic number.

102305971 is a deficient number, since it is larger than the sum of its proper divisors (31229).

102305971 is an equidigital number, since it uses as much as digits as its factorization.

102305971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31228.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 102305971 is about 10114.6414172723. The cubic root of 102305971 is about 467.6995950608.

The spelling of 102305971 in words is "one hundred two million, three hundred five thousand, nine hundred seventy-one".