70751161 has 8 divisors (see below), whose sum is σ = 80675784. Its totient is φ = 61466880.

The previous prime is 70751147. The next prime is 70751189. The reversal of 70751161 is 16115707.

It can be written as a sum of positive squares in 4 ways, for example, as 18275625 + 52475536 = 4275^2 + 7244^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 70751161 - 2¹⁷ = 70620089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70751101) 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, 159850 + ... + 160291.

It is an arithmetic number, because the mean of its divisors is an integer number (10084473).

Almost surely, 2^70751161 is an apocalyptic number.

It is an amenable number.

70751161 is a deficient number, since it is larger than the sum of its proper divisors (9924623).

70751161 is a wasteful number, since it uses less digits than its factorization.

70751161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320171.

The product of its (nonzero) digits is 1470, while the sum is 28.

The square root of 70751161 is about 8411.3709346337. The cubic root of 70751161 is about 413.5974542536.

Adding to 70751161 its reverse (16115707), we get a palindrome (86866868).

The spelling of 70751161 in words is "seventy million, seven hundred fifty-one thousand, one hundred sixty-one".