102806143 has 8 divisors (see below), whose sum is σ = 114053760. Its totient is φ = 91875480.

The previous prime is 102806141. The next prime is 102806149. The reversal of 102806143 is 341608201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102806143 - 2¹ = 102806141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102806141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78555 + ... + 79852.

It is an arithmetic number, because the mean of its divisors is an integer number (14256720).

Almost surely, 2^102806143 is an apocalyptic number.

102806143 is a deficient number, since it is larger than the sum of its proper divisors (11247617).

102806143 is a wasteful number, since it uses less digits than its factorization.

102806143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158477.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 102806143 is about 10139.3364181291. The cubic root of 102806143 is about 468.4605478666.

The spelling of 102806143 in words is "one hundred two million, eight hundred six thousand, one hundred forty-three".