18070001 has 2 divisors, whose sum is σ = 18070002. Its totient is φ = 18070000.

The previous prime is 18069983. The next prime is 18070027. The reversal of 18070001 is 10007081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14070001 + 4000000 = 3751^2 + 2000^2 .

It is a cyclic number.

It is not a de Polignac number, because 18070001 - 2¹⁴ = 18053617 is a prime.

It is a super-2 number, since 2×18070001² = 653049872280002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18070051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9035000 + 9035001.

It is an arithmetic number, because the mean of its divisors is an integer number (9035001).

Almost surely, 2^18070001 is an apocalyptic number.

It is an amenable number.

18070001 is a deficient number, since it is larger than the sum of its proper divisors (1).

18070001 is an equidigital number, since it uses as much as digits as its factorization.

18070001 is an evil number, because the sum of its binary digits is even.

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

The square root of 18070001 is about 4250.8823789891. The cubic root of 18070001 is about 262.4134305616.

Adding to 18070001 its reverse (10007081), we get a palindrome (28077082).

The spelling of 18070001 in words is "eighteen million, seventy thousand, one".