70671136 has 12 divisors (see below), whose sum is σ = 139133862. Its totient is φ = 35335552.

The previous prime is 70671119. The next prime is 70671137. The reversal of 70671136 is 63117607.

It can be written as a sum of positive squares in only one way, i.e., 63680400 + 6990736 = 7980^2 + 2644^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70671098 and 70671107.

It is not an unprimeable number, because it can be changed into a prime (70671137) 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 as a sum of consecutive naturals, namely, 1104205 + ... + 1104268.

Almost surely, 2^70671136 is an apocalyptic number.

It is an amenable number.

70671136 is a deficient number, since it is larger than the sum of its proper divisors (68462726).

70671136 is a wasteful number, since it uses less digits than its factorization.

70671136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208483 (or 2208475 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 70671136 is about 8406.6126353009. The cubic root of 70671136 is about 413.4414585898.

It can be divided in two parts, 70671 and 136, that added together give a palindrome (70807).

The spelling of 70671136 in words is "seventy million, six hundred seventy-one thousand, one hundred thirty-six".