181233473 has 2 divisors, whose sum is σ = 181233474. Its totient is φ = 181233472.

The previous prime is 181233469. The next prime is 181233527. The reversal of 181233473 is 374332181.

181233473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173791489 + 7441984 = 13183^2 + 2728^2 .

It is a cyclic number.

It is not a de Polignac number, because 181233473 - 2² = 181233469 is a prime.

It is not a weakly prime, because it can be changed into another prime (181233463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90616736 + 90616737.

It is an arithmetic number, because the mean of its divisors is an integer number (90616737).

Almost surely, 2^181233473 is an apocalyptic number.

It is an amenable number.

181233473 is a deficient number, since it is larger than the sum of its proper divisors (1).

181233473 is an equidigital number, since it uses as much as digits as its factorization.

181233473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 181233473 is about 13462.2982064728. The cubic root of 181233473 is about 565.9083964428.

The spelling of 181233473 in words is "one hundred eighty-one million, two hundred thirty-three thousand, four hundred seventy-three".