70522013 has 2 divisors, whose sum is σ = 70522014. Its totient is φ = 70522012.

The previous prime is 70522003. The next prime is 70522027. The reversal of 70522013 is 31022507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67289209 + 3232804 = 8203^2 + 1798^2 .

It is a cyclic number.

It is not a de Polignac number, because 70522013 - 2¹² = 70517917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70522003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35261006 + 35261007.

It is an arithmetic number, because the mean of its divisors is an integer number (35261007).

Almost surely, 2^70522013 is an apocalyptic number.

It is an amenable number.

70522013 is a deficient number, since it is larger than the sum of its proper divisors (1).

70522013 is an equidigital number, since it uses as much as digits as its factorization.

70522013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 70522013 is about 8397.7385646375. The cubic root of 70522013 is about 413.1504531898.

The spelling of 70522013 in words is "seventy million, five hundred twenty-two thousand, thirteen".