18070613 has 16 divisors (see below), whose sum is σ = 20528640. Its totient is φ = 15758400.

The previous prime is 18070603. The next prime is 18070631. The reversal of 18070613 is 31607081.

It is a cyclic number.

It is not a de Polignac number, because 18070613 - 2⁴ = 18070597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18070603) 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 15 ways as a sum of consecutive naturals, for example, 67043 + ... + 67311.

It is an arithmetic number, because the mean of its divisors is an integer number (1283040).

Almost surely, 2^18070613 is an apocalyptic number.

It is an amenable number.

18070613 is a deficient number, since it is larger than the sum of its proper divisors (2458027).

18070613 is a wasteful number, since it uses less digits than its factorization.

18070613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 18070613 is about 4250.9543634342. The cubic root of 18070613 is about 262.4163930261.

Adding to 18070613 its reverse (31607081), we get a palindrome (49677694).

The spelling of 18070613 in words is "eighteen million, seventy thousand, six hundred thirteen".