33140473 has 2 divisors, whose sum is σ = 33140474. Its totient is φ = 33140472.

The previous prime is 33140461. The next prime is 33140479. The reversal of 33140473 is 37404133.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27123264 + 6017209 = 5208^2 + 2453^2 .

It is a cyclic number.

It is not a de Polignac number, because 33140473 - 2⁵ = 33140441 is a prime.

It is not a weakly prime, because it can be changed into another prime (33140479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16570236 + 16570237.

It is an arithmetic number, because the mean of its divisors is an integer number (16570237).

Almost surely, 2^33140473 is an apocalyptic number.

It is an amenable number.

33140473 is a deficient number, since it is larger than the sum of its proper divisors (1).

33140473 is an equidigital number, since it uses as much as digits as its factorization.

33140473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 33140473 is about 5756.7762680167. The cubic root of 33140473 is about 321.2079119414.

It can be divided in two parts, 331 and 40473, that added together give a palindrome (40804).

The spelling of 33140473 in words is "thirty-three million, one hundred forty thousand, four hundred seventy-three".