102859831 has 2 divisors, whose sum is σ = 102859832. Its totient is φ = 102859830.

The previous prime is 102859811. The next prime is 102859853. The reversal of 102859831 is 138958201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102859831 - 2¹⁹ = 102335543 is a prime.

It is a super-2 number, since 2×102859831² = 21160289666697122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102859811) 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 as a sum of consecutive naturals, namely, 51429915 + 51429916.

It is an arithmetic number, because the mean of its divisors is an integer number (51429916).

Almost surely, 2^102859831 is an apocalyptic number.

102859831 is a deficient number, since it is larger than the sum of its proper divisors (1).

102859831 is an equidigital number, since it uses as much as digits as its factorization.

102859831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 102859831 is about 10141.9835831064. The cubic root of 102859831 is about 468.5420810394.

The spelling of 102859831 in words is "one hundred two million, eight hundred fifty-nine thousand, eight hundred thirty-one".