102797271 has 18 divisors (see below), whose sum is σ = 153527712. Its totient is φ = 66211560.

The previous prime is 102797269. The next prime is 102797273. The reversal of 102797271 is 172797201.

It is an interprime number because it is at equal distance from previous prime (102797269) and next prime (102797273).

It is not a de Polignac number, because 102797271 - 2¹ = 102797269 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102797273) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 169050 + ... + 169656.

Almost surely, 2^102797271 is an apocalyptic number.

102797271 is a deficient number, since it is larger than the sum of its proper divisors (50730441).

102797271 is an frugal number, since it uses more digits than its factorization.

102797271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 36.

The square root of 102797271 is about 10138.8989047135. The cubic root of 102797271 is about 468.4470716890.

The spelling of 102797271 in words is "one hundred two million, seven hundred ninety-seven thousand, two hundred seventy-one".