70730111 has 2 divisors, whose sum is σ = 70730112. Its totient is φ = 70730110.

The previous prime is 70730089. The next prime is 70730113. The reversal of 70730111 is 11103707.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70730111 is a prime.

Together with 70730113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70730113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35365055 + 35365056.

It is an arithmetic number, because the mean of its divisors is an integer number (35365056).

Almost surely, 2^70730111 is an apocalyptic number.

70730111 is a deficient number, since it is larger than the sum of its proper divisors (1).

70730111 is an equidigital number, since it uses as much as digits as its factorization.

70730111 is an odious number, because the sum of its binary digits is odd.

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

The square root of 70730111 is about 8410.1195591977. The cubic root of 70730111 is about 413.5564321235.

Adding to 70730111 its reverse (11103707), we get a palindrome (81833818).

The spelling of 70730111 in words is "seventy million, seven hundred thirty thousand, one hundred eleven".