70106539 has 2 divisors, whose sum is σ = 70106540. Its totient is φ = 70106538.

The previous prime is 70106537. The next prime is 70106639. The reversal of 70106539 is 93560107.

It is a weak prime.

It is an emirp because it is prime and its reverse (93560107) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70106539 - 2¹ = 70106537 is a prime.

Together with 70106537, 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 70106539.

It is not a weakly prime, because it can be changed into another prime (70106537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35053269 + 35053270.

It is an arithmetic number, because the mean of its divisors is an integer number (35053270).

Almost surely, 2^70106539 is an apocalyptic number.

70106539 is a deficient number, since it is larger than the sum of its proper divisors (1).

70106539 is an equidigital number, since it uses as much as digits as its factorization.

70106539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 70106539 is about 8372.9647676316. The cubic root of 70106539 is about 412.3375085742.

The spelling of 70106539 in words is "seventy million, one hundred six thousand, five hundred thirty-nine".