102730871 has 4 divisors (see below), whose sum is σ = 105236544. Its totient is φ = 100225200.

The previous prime is 102730799. The next prime is 102730879. The reversal of 102730871 is 178037201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102730871 - 2²² = 98536567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102730879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1252775 + ... + 1252856.

It is an arithmetic number, because the mean of its divisors is an integer number (26309136).

Almost surely, 2^102730871 is an apocalyptic number.

102730871 is a deficient number, since it is larger than the sum of its proper divisors (2505673).

102730871 is an equidigital number, since it uses as much as digits as its factorization.

102730871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505672.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 102730871 is about 10135.6238584509. The cubic root of 102730871 is about 468.3461883845.

The spelling of 102730871 in words is "one hundred two million, seven hundred thirty thousand, eight hundred seventy-one".