71071053 has 4 divisors (see below), whose sum is σ = 94761408. Its totient is φ = 47380700.

The previous prime is 71071051. The next prime is 71071057. The reversal of 71071053 is 35017017.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71071053 - 2¹ = 71071051 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71071051) 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, 11845173 + ... + 11845178.

It is an arithmetic number, because the mean of its divisors is an integer number (23690352).

Almost surely, 2^71071053 is an apocalyptic number.

It is an amenable number.

71071053 is a deficient number, since it is larger than the sum of its proper divisors (23690355).

71071053 is a wasteful number, since it uses less digits than its factorization.

71071053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23690354.

The product of its (nonzero) digits is 735, while the sum is 24.

The square root of 71071053 is about 8430.3649387200. The cubic root of 71071053 is about 414.2198591828.

The spelling of 71071053 in words is "seventy-one million, seventy-one thousand, fifty-three".