33146138 has 4 divisors (see below), whose sum is σ = 49719210. Its totient is φ = 16573068.

The previous prime is 33146131. The next prime is 33146143. The reversal of 33146138 is 83164133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19918369 + 13227769 = 4463^2 + 3637^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 33146138.

It is not an unprimeable number, because it can be changed into a prime (33146131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8286533 + ... + 8286536.

Almost surely, 2^33146138 is an apocalyptic number.

33146138 is a deficient number, since it is larger than the sum of its proper divisors (16573072).

33146138 is a wasteful number, since it uses less digits than its factorization.

33146138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16573071.

The product of its digits is 5184, while the sum is 29.

The square root of 33146138 is about 5757.2682758405. The cubic root of 33146138 is about 321.2262132206.

The spelling of 33146138 in words is "thirty-three million, one hundred forty-six thousand, one hundred thirty-eight".