102099271 has 2 divisors, whose sum is σ = 102099272. Its totient is φ = 102099270.

The previous prime is 102099247. The next prime is 102099301. The reversal of 102099271 is 172990201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102099271 is a prime.

It is a super-2 number, since 2×102099271² = 20848522277462882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102099211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51049635 + 51049636.

It is an arithmetic number, because the mean of its divisors is an integer number (51049636).

Almost surely, 2^102099271 is an apocalyptic number.

102099271 is a deficient number, since it is larger than the sum of its proper divisors (1).

102099271 is an equidigital number, since it uses as much as digits as its factorization.

102099271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 102099271 is about 10104.4183899916. The cubic root of 102099271 is about 467.3844010558.

The spelling of 102099271 in words is "one hundred two million, ninety-nine thousand, two hundred seventy-one".