100512871 has 2 divisors, whose sum is σ = 100512872. Its totient is φ = 100512870.

The previous prime is 100512847. The next prime is 100512901. The reversal of 100512871 is 178215001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100512871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100512821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50256435 + 50256436.

It is an arithmetic number, because the mean of its divisors is an integer number (50256436).

Almost surely, 2^100512871 is an apocalyptic number.

100512871 is a deficient number, since it is larger than the sum of its proper divisors (1).

100512871 is an equidigital number, since it uses as much as digits as its factorization.

100512871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 100512871 is about 10025.6107544628. The cubic root of 100512871 is about 464.9510427511.

Adding to 100512871 its reverse (178215001), we get a palindrome (278727872).

The spelling of 100512871 in words is "one hundred million, five hundred twelve thousand, eight hundred seventy-one".