180961433 has 2 divisors, whose sum is σ = 180961434. Its totient is φ = 180961432.

The previous prime is 180961427. The next prime is 180961511. The reversal of 180961433 is 334169081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119071744 + 61889689 = 10912^2 + 7867^2 .

It is a cyclic number.

It is not a de Polignac number, because 180961433 - 2⁶ = 180961369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 180961393 and 180961402.

It is not a weakly prime, because it can be changed into another prime (180961733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90480716 + 90480717.

It is an arithmetic number, because the mean of its divisors is an integer number (90480717).

Almost surely, 2^180961433 is an apocalyptic number.

It is an amenable number.

180961433 is a deficient number, since it is larger than the sum of its proper divisors (1).

180961433 is an equidigital number, since it uses as much as digits as its factorization.

180961433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 180961433 is about 13452.1906394461. The cubic root of 180961433 is about 565.6251029089.

The spelling of 180961433 in words is "one hundred eighty million, nine hundred sixty-one thousand, four hundred thirty-three".