18079031 has 2 divisors, whose sum is σ = 18079032. Its totient is φ = 18079030.

The previous prime is 18078947. The next prime is 18079043. The reversal of 18079031 is 13097081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18079031 - 2²² = 13884727 is a prime.

It is a super-2 number, since 2×18079031² = 653702723797922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18078985 and 18079003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18079091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9039515 + 9039516.

It is an arithmetic number, because the mean of its divisors is an integer number (9039516).

Almost surely, 2^18079031 is an apocalyptic number.

18079031 is a deficient number, since it is larger than the sum of its proper divisors (1).

18079031 is an equidigital number, since it uses as much as digits as its factorization.

18079031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 18079031 is about 4251.9443787519. The cubic root of 18079031 is about 262.4571346484.

The spelling of 18079031 in words is "eighteen million, seventy-nine thousand, thirty-one".