71070113 has 4 divisors (see below), whose sum is σ = 71540928. Its totient is φ = 70599300.

The previous prime is 71070091. The next prime is 71070137. The reversal of 71070113 is 31107017.

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 71070113 - 2⁸ = 71069857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71070173) 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, 235181 + ... + 235482.

It is an arithmetic number, because the mean of its divisors is an integer number (17885232).

Almost surely, 2^71070113 is an apocalyptic number.

It is an amenable number.

71070113 is a deficient number, since it is larger than the sum of its proper divisors (470815).

71070113 is a wasteful number, since it uses less digits than its factorization.

71070113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470814.

The product of its (nonzero) digits is 147, while the sum is 20.

The square root of 71070113 is about 8430.3091876870. The cubic root of 71070113 is about 414.2180329898.

The spelling of 71070113 in words is "seventy-one million, seventy thousand, one hundred thirteen".