70682138 has 8 divisors (see below), whose sum is σ = 106089588. Its totient is φ = 35318944.

The previous prime is 70682137. The next prime is 70682149. The reversal of 70682138 is 83128607.

It can be written as a sum of positive squares in 2 ways, for example, as 70677649 + 4489 = 8407^2 + 67^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 70682098 and 70682107.

It is not an unprimeable number, because it can be changed into a prime (70682137) 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 in 3 ways as a sum of consecutive naturals, for example, 6731 + ... + 13662.

Almost surely, 2^70682138 is an apocalyptic number.

70682138 is a deficient number, since it is larger than the sum of its proper divisors (35407450).

70682138 is a wasteful number, since it uses less digits than its factorization.

70682138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22128.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 70682138 is about 8407.2669756586. The cubic root of 70682138 is about 413.4629121712.

The spelling of 70682138 in words is "seventy million, six hundred eighty-two thousand, one hundred thirty-eight".