70584139 has 2 divisors, whose sum is σ = 70584140. Its totient is φ = 70584138.

The previous prime is 70584133. The next prime is 70584161. The reversal of 70584139 is 93148507.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70584139 - 2¹¹ = 70582091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70584098 and 70584107.

It is not a weakly prime, because it can be changed into another prime (70584133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35292069 + 35292070.

It is an arithmetic number, because the mean of its divisors is an integer number (35292070).

Almost surely, 2^70584139 is an apocalyptic number.

70584139 is a deficient number, since it is larger than the sum of its proper divisors (1).

70584139 is an equidigital number, since it uses as much as digits as its factorization.

70584139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 70584139 is about 8401.4367223708. The cubic root of 70584139 is about 413.2717384947.

The spelling of 70584139 in words is "seventy million, five hundred eighty-four thousand, one hundred thirty-nine".