71054013 has 4 divisors (see below), whose sum is σ = 94738688. Its totient is φ = 47369340.

The previous prime is 71054003. The next prime is 71054021. The reversal of 71054013 is 31045017.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31045017 = 3 ⋅10348339.

It is not a de Polignac number, because 71054013 - 2⁸ = 71053757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71054003) 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, 11842333 + ... + 11842338.

It is an arithmetic number, because the mean of its divisors is an integer number (23684672).

Almost surely, 2^71054013 is an apocalyptic number.

It is an amenable number.

71054013 is a deficient number, since it is larger than the sum of its proper divisors (23684675).

71054013 is a wasteful number, since it uses less digits than its factorization.

71054013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23684674.

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

The square root of 71054013 is about 8429.3542457296. The cubic root of 71054013 is about 414.1867520772.

The spelling of 71054013 in words is "seventy-one million, fifty-four thousand, thirteen".