102858919 has 2 divisors, whose sum is σ = 102858920. Its totient is φ = 102858918.

The previous prime is 102858893. The next prime is 102858929. The reversal of 102858919 is 919858201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102858919 - 2⁹ = 102858407 is a prime.

It is a super-2 number, since 2×102858919² = 21159914435697122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102858929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51429459 + 51429460.

It is an arithmetic number, because the mean of its divisors is an integer number (51429460).

Almost surely, 2^102858919 is an apocalyptic number.

102858919 is a deficient number, since it is larger than the sum of its proper divisors (1).

102858919 is an equidigital number, since it uses as much as digits as its factorization.

102858919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 43.

The square root of 102858919 is about 10141.9386213879. The cubic root of 102858919 is about 468.5406962693.

The spelling of 102858919 in words is "one hundred two million, eight hundred fifty-eight thousand, nine hundred nineteen".