18234971 has 2 divisors, whose sum is σ = 18234972. Its totient is φ = 18234970.

The previous prime is 18234947. The next prime is 18234977. The reversal of 18234971 is 17943281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18234971 - 2⁶ = 18234907 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18234977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9117485 + 9117486.

It is an arithmetic number, because the mean of its divisors is an integer number (9117486).

Almost surely, 2^18234971 is an apocalyptic number.

18234971 is a deficient number, since it is larger than the sum of its proper divisors (1).

18234971 is an equidigital number, since it uses as much as digits as its factorization.

18234971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 18234971 is about 4270.2424989689. The cubic root of 18234971 is about 263.2095800860.

It can be divided in two parts, 182 and 34971, that added together give a palindrome (35153).

The spelling of 18234971 in words is "eighteen million, two hundred thirty-four thousand, nine hundred seventy-one".