70371071 has 2 divisors, whose sum is σ = 70371072. Its totient is φ = 70371070.

The previous prime is 70371031. The next prime is 70371073. The reversal of 70371071 is 17017307.

It is a strong prime.

It is an emirp because it is prime and its reverse (17017307) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70371071 is a prime.

Together with 70371073, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70371071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70371073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35185535 + 35185536.

It is an arithmetic number, because the mean of its divisors is an integer number (35185536).

Almost surely, 2^70371071 is an apocalyptic number.

70371071 is a deficient number, since it is larger than the sum of its proper divisors (1).

70371071 is an equidigital number, since it uses as much as digits as its factorization.

70371071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1029, while the sum is 26.

The square root of 70371071 is about 8388.7466882723. The cubic root of 70371071 is about 412.8554800408.

Adding to 70371071 its reverse (17017307), we get a palindrome (87388378).

The spelling of 70371071 in words is "seventy million, three hundred seventy-one thousand, seventy-one".