10205971 has 4 divisors (see below), whose sum is σ = 10373344. Its totient is φ = 10038600.

The previous prime is 10205963. The next prime is 10205989. The reversal of 10205971 is 17950201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17950201 = 1021 ⋅17581.

It is a cyclic number.

It is not a de Polignac number, because 10205971 - 2³ = 10205963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10202971) 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, 83595 + ... + 83716.

It is an arithmetic number, because the mean of its divisors is an integer number (2593336).

Almost surely, 2^10205971 is an apocalyptic number.

10205971 is a deficient number, since it is larger than the sum of its proper divisors (167373).

10205971 is an equidigital number, since it uses as much as digits as its factorization.

10205971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167372.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 10205971 is about 3194.6785440792. The cubic root of 10205971 is about 216.9125983255.

The spelling of 10205971 in words is "ten million, two hundred five thousand, nine hundred seventy-one".