70123238 has 4 divisors (see below), whose sum is σ = 105184860. Its totient is φ = 35061618.

The previous prime is 70123237. The next prime is 70123267. The reversal of 70123238 is 83232107.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83232107 = 7 ⋅11890301.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70123231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17530808 + ... + 17530811.

It is an arithmetic number, because the mean of its divisors is an integer number (26296215).

Almost surely, 2^70123238 is an apocalyptic number.

70123238 is a deficient number, since it is larger than the sum of its proper divisors (35061622).

70123238 is a wasteful number, since it uses less digits than its factorization.

70123238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35061621.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 70123238 is about 8373.9619058126. The cubic root of 70123238 is about 412.3702448331.

The spelling of 70123238 in words is "seventy million, one hundred twenty-three thousand, two hundred thirty-eight".