71052123 has 4 divisors (see below), whose sum is σ = 94736168. Its totient is φ = 47368080.

The previous prime is 71052103. The next prime is 71052151. The reversal of 71052123 is 32125017.

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

It is not a de Polignac number, because 71052123 - 2⁹ = 71051611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71052123.

It is not an unprimeable number, because it can be changed into a prime (71052103) 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, 11842018 + ... + 11842023.

It is an arithmetic number, because the mean of its divisors is an integer number (23684042).

Almost surely, 2^71052123 is an apocalyptic number.

71052123 is a deficient number, since it is larger than the sum of its proper divisors (23684045).

71052123 is a wasteful number, since it uses less digits than its factorization.

71052123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23684044.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 71052123 is about 8429.2421367523. The cubic root of 71052123 is about 414.1830796602.

The spelling of 71052123 in words is "seventy-one million, fifty-two thousand, one hundred twenty-three".