102271287 has 8 divisors (see below), whose sum is σ = 137712240. Its totient is φ = 67505600.

The previous prime is 102271283. The next prime is 102271289. The reversal of 102271287 is 782172201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102271287 - 2² = 102271283 is a prime.

It is a super-2 number, since 2×102271287² = 20918832289272738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102271283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168462 + ... + 169067.

It is an arithmetic number, because the mean of its divisors is an integer number (17214030).

Almost surely, 2^102271287 is an apocalyptic number.

102271287 is a deficient number, since it is larger than the sum of its proper divisors (35440953).

102271287 is a wasteful number, since it uses less digits than its factorization.

102271287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337633.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 102271287 is about 10112.9267277085. The cubic root of 102271287 is about 467.6467355645.

The spelling of 102271287 in words is "one hundred two million, two hundred seventy-one thousand, two hundred eighty-seven".