102051643 has 2 divisors, whose sum is σ = 102051644. Its totient is φ = 102051642.

The previous prime is 102051623. The next prime is 102051671. The reversal of 102051643 is 346150201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102051643 is a prime.

It is not a weakly prime, because it can be changed into another prime (102051623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51025821 + 51025822.

It is an arithmetic number, because the mean of its divisors is an integer number (51025822).

Almost surely, 2^102051643 is an apocalyptic number.

102051643 is a deficient number, since it is larger than the sum of its proper divisors (1).

102051643 is an equidigital number, since it uses as much as digits as its factorization.

102051643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 102051643 is about 10102.0613243041. The cubic root of 102051643 is about 467.3117134765.

The spelling of 102051643 in words is "one hundred two million, fifty-one thousand, six hundred forty-three".