10157971 has 4 divisors (see below), whose sum is σ = 10330200. Its totient is φ = 9985744.

The previous prime is 10157947. The next prime is 10157977. The reversal of 10157971 is 17975101.

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 10157971 - 2¹⁷ = 10026899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10157977) 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, 86026 + ... + 86143.

It is an arithmetic number, because the mean of its divisors is an integer number (2582550).

Almost surely, 2^10157971 is an apocalyptic number.

10157971 is a deficient number, since it is larger than the sum of its proper divisors (172229).

10157971 is an equidigital number, since it uses as much as digits as its factorization.

10157971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172228.

The product of its (nonzero) digits is 2205, while the sum is 31.

The square root of 10157971 is about 3187.1571972527. The cubic root of 10157971 is about 216.5720078290.

The spelling of 10157971 in words is "ten million, one hundred fifty-seven thousand, nine hundred seventy-one".