33145141 has 2 divisors, whose sum is σ = 33145142. Its totient is φ = 33145140.

The previous prime is 33145129. The next prime is 33145157. The reversal of 33145141 is 14154133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30758116 + 2387025 = 5546^2 + 1545^2 .

It is a cyclic number.

It is not a de Polignac number, because 33145141 - 2⁵ = 33145109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33145111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16572570 + 16572571.

It is an arithmetic number, because the mean of its divisors is an integer number (16572571).

Almost surely, 2^33145141 is an apocalyptic number.

It is an amenable number.

33145141 is a deficient number, since it is larger than the sum of its proper divisors (1).

33145141 is an equidigital number, since it uses as much as digits as its factorization.

33145141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 22.

The square root of 33145141 is about 5757.1816889864. The cubic root of 33145141 is about 321.2229924759. Note that the first 3 decimals are identical.

Adding to 33145141 its reverse (14154133), we get a palindrome (47299274).

The spelling of 33145141 in words is "thirty-three million, one hundred forty-five thousand, one hundred forty-one".