70111071 has 6 divisors (see below), whose sum is σ = 101271560. Its totient is φ = 46740708.

The previous prime is 70111051. The next prime is 70111081. The reversal of 70111071 is 17011107.

It is not a de Polignac number, because 70111071 - 2⁵ = 70111039 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 (70111031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3895051 + ... + 3895068.

Almost surely, 2^70111071 is an apocalyptic number.

70111071 is a deficient number, since it is larger than the sum of its proper divisors (31160489).

70111071 is a wasteful number, since it uses less digits than its factorization.

70111071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7790125 (or 7790122 counting only the distinct ones).

The product of its (nonzero) digits is 49, while the sum is 18.

The square root of 70111071 is about 8373.2353961895. The cubic root of 70111071 is about 412.3463934959.

Adding to 70111071 its reverse (17011107), we get a palindrome (87122178).

The spelling of 70111071 in words is "seventy million, one hundred eleven thousand, seventy-one".