33143146 has 8 divisors (see below), whose sum is σ = 49742244. Its totient is φ = 16562400.

The previous prime is 33143059. The next prime is 33143147. The reversal of 33143146 is 64134133.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32936121 + 207025 = 5739^2 + 455^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 33143146.

It is not an unprimeable number, because it can be changed into a prime (33143147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1596 + ... + 8296.

Almost surely, 2^33143146 is an apocalyptic number.

33143146 is a deficient number, since it is larger than the sum of its proper divisors (16599098).

33143146 is a wasteful number, since it uses less digits than its factorization.

33143146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9176.

The product of its digits is 2592, while the sum is 25.

The square root of 33143146 is about 5757.0084245205. The cubic root of 33143146 is about 321.2165475621.

Adding to 33143146 its reverse (64134133), we get a palindrome (97277279).

The spelling of 33143146 in words is "thirty-three million, one hundred forty-three thousand, one hundred forty-six".