100402271 has 2 divisors, whose sum is σ = 100402272. Its totient is φ = 100402270.

The previous prime is 100402261. The next prime is 100402297. The reversal of 100402271 is 172204001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100402271 - 2⁶ = 100402207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100402261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50201135 + 50201136.

It is an arithmetic number, because the mean of its divisors is an integer number (50201136).

Almost surely, 2^100402271 is an apocalyptic number.

100402271 is a deficient number, since it is larger than the sum of its proper divisors (1).

100402271 is an equidigital number, since it uses as much as digits as its factorization.

100402271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 100402271 is about 10020.0933628385. The cubic root of 100402271 is about 464.7804428475.

Adding to 100402271 its reverse (172204001), we get a palindrome (272606272).

The spelling of 100402271 in words is "one hundred million, four hundred two thousand, two hundred seventy-one".