33146149 has 2 divisors, whose sum is σ = 33146150. Its totient is φ = 33146148.

The previous prime is 33146143. The next prime is 33146167. The reversal of 33146149 is 94164133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22137025 + 11009124 = 4705^2 + 3318^2 .

It is a cyclic number.

It is not a de Polignac number, because 33146149 - 2⁷ = 33146021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33146149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33146143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16573074 + 16573075.

It is an arithmetic number, because the mean of its divisors is an integer number (16573075).

Almost surely, 2^33146149 is an apocalyptic number.

It is an amenable number.

33146149 is a deficient number, since it is larger than the sum of its proper divisors (1).

33146149 is an equidigital number, since it uses as much as digits as its factorization.

33146149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 31.

The square root of 33146149 is about 5757.2692311546. The cubic root of 33146149 is about 321.2262487550.

The spelling of 33146149 in words is "thirty-three million, one hundred forty-six thousand, one hundred forty-nine".