102155271 has 8 divisors (see below), whose sum is σ = 136266864. Its totient is φ = 68073600.

The previous prime is 102155269. The next prime is 102155279. The reversal of 102155271 is 172551201.

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

It is not a de Polignac number, because 102155271 - 2¹ = 102155269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102155279) 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 in 7 ways as a sum of consecutive naturals, for example, 2325 + ... + 14481.

It is an arithmetic number, because the mean of its divisors is an integer number (17033358).

Almost surely, 2^102155271 is an apocalyptic number.

102155271 is a deficient number, since it is larger than the sum of its proper divisors (34111593).

102155271 is a wasteful number, since it uses less digits than its factorization.

102155271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14961.

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 102155271 is about 10107.1890751089. The cubic root of 102155271 is about 467.4698366729.

The spelling of 102155271 in words is "one hundred two million, one hundred fifty-five thousand, two hundred seventy-one".