70071161 has 8 divisors (see below), whose sum is σ = 74610720. Its totient is φ = 65578048.

The previous prime is 70071149. The next prime is 70071181. The reversal of 70071161 is 16117007.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70071161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70071181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8471 + ... + 14556.

It is an arithmetic number, because the mean of its divisors is an integer number (9326340).

Almost surely, 2^70071161 is an apocalyptic number.

It is an amenable number.

70071161 is a deficient number, since it is larger than the sum of its proper divisors (4539559).

70071161 is a wasteful number, since it uses less digits than its factorization.

70071161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23223.

The product of its (nonzero) digits is 294, while the sum is 23.

The square root of 70071161 is about 8370.8518682390. The cubic root of 70071161 is about 412.2681373426.

Adding to 70071161 its reverse (16117007), we get a palindrome (86188168).

The spelling of 70071161 in words is "seventy million, seventy-one thousand, one hundred sixty-one".