70147211 has 4 divisors (see below), whose sum is σ = 70217472. Its totient is φ = 70076952.

The previous prime is 70147193. The next prime is 70147241. The reversal of 70147211 is 11274107.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70147211 is a prime.

It is a super-2 number, since 2×70147211² = 9841262422157042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70147241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33611 + ... + 35636.

It is an arithmetic number, because the mean of its divisors is an integer number (17554368).

Almost surely, 2^70147211 is an apocalyptic number.

70147211 is a deficient number, since it is larger than the sum of its proper divisors (70261).

70147211 is a wasteful number, since it uses less digits than its factorization.

70147211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70260.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 70147211 is about 8375.3931848003. The cubic root of 70147211 is about 412.4172317561.

The spelling of 70147211 in words is "seventy million, one hundred forty-seven thousand, two hundred eleven".