70135223 has 4 divisors (see below), whose sum is σ = 70161528. Its totient is φ = 70108920.

The previous prime is 70135207. The next prime is 70135229. The reversal of 70135223 is 32253107.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32253107 = 23 ⋅1402309.

It is a cyclic number.

It is not a de Polignac number, because 70135223 - 2⁴ = 70135207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70135229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8636 + ... + 14657.

It is an arithmetic number, because the mean of its divisors is an integer number (17540382).

Almost surely, 2^70135223 is an apocalyptic number.

70135223 is a deficient number, since it is larger than the sum of its proper divisors (26305).

70135223 is a wasteful number, since it uses less digits than its factorization.

70135223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26304.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 70135223 is about 8374.6774863275. The cubic root of 70135223 is about 412.3937366930.

The spelling of 70135223 in words is "seventy million, one hundred thirty-five thousand, two hundred twenty-three".