102155203 has 2 divisors, whose sum is σ = 102155204. Its totient is φ = 102155202.

The previous prime is 102155177. The next prime is 102155219. The reversal of 102155203 is 302551201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102155203 - 2²¹ = 100058051 is a prime.

It is not a weakly prime, because it can be changed into another prime (102155303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51077601 + 51077602.

It is an arithmetic number, because the mean of its divisors is an integer number (51077602).

Almost surely, 2^102155203 is an apocalyptic number.

102155203 is a deficient number, since it is larger than the sum of its proper divisors (1).

102155203 is an equidigital number, since it uses as much as digits as its factorization.

102155203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 102155203 is about 10107.1857111661. The cubic root of 102155203 is about 467.4697329485.

The spelling of 102155203 in words is "one hundred two million, one hundred fifty-five thousand, two hundred three".