70001081 has 8 divisors (see below), whose sum is σ = 71992800. Its totient is φ = 68036320.

The previous prime is 70001059. The next prime is 70001083. The reversal of 70001081 is 18010007.

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 70001081 - 2¹⁰ = 70000057 is a prime.

It is a super-2 number, since 2×70001081² = 9800302682337122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70001083) 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 in 7 ways as a sum of consecutive naturals, for example, 1415 + ... + 11916.

It is an arithmetic number, because the mean of its divisors is an integer number (8999100).

Almost surely, 2^70001081 is an apocalyptic number.

It is an amenable number.

70001081 is a deficient number, since it is larger than the sum of its proper divisors (1991719).

70001081 is a wasteful number, since it uses less digits than its factorization.

70001081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13479.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 70001081 is about 8366.6648671977. The cubic root of 70001081 is about 412.1306514506.

Adding to 70001081 its reverse (18010007), we get a palindrome (88011088).

The spelling of 70001081 in words is "seventy million, one thousand, eighty-one".