70135123 has 2 divisors, whose sum is σ = 70135124. Its totient is φ = 70135122.

The previous prime is 70135111. The next prime is 70135127. The reversal of 70135123 is 32153107.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70135123 - 2⁹ = 70134611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70135094 and 70135103.

It is not a weakly prime, because it can be changed into another prime (70135127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35067561 + 35067562.

It is an arithmetic number, because the mean of its divisors is an integer number (35067562).

Almost surely, 2^70135123 is an apocalyptic number.

70135123 is a deficient number, since it is larger than the sum of its proper divisors (1).

70135123 is an equidigital number, since it uses as much as digits as its factorization.

70135123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 70135123 is about 8374.6715159462. The cubic root of 70135123 is about 412.3935406935.

The spelling of 70135123 in words is "seventy million, one hundred thirty-five thousand, one hundred twenty-three".