102645671 has 2 divisors, whose sum is σ = 102645672. Its totient is φ = 102645670.

The previous prime is 102645661. The next prime is 102645679. The reversal of 102645671 is 176546201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102645671 - 2⁶ = 102645607 is a prime.

It is a super-2 number, since 2×102645671² = 21072267550080482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102645679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51322835 + 51322836.

It is an arithmetic number, because the mean of its divisors is an integer number (51322836).

Almost surely, 2^102645671 is an apocalyptic number.

102645671 is a deficient number, since it is larger than the sum of its proper divisors (1).

102645671 is an equidigital number, since it uses as much as digits as its factorization.

102645671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 102645671 is about 10131.4199893204. The cubic root of 102645671 is about 468.2166780397.

The spelling of 102645671 in words is "one hundred two million, six hundred forty-five thousand, six hundred seventy-one".