33869149 has 4 divisors (see below), whose sum is σ = 34093600. Its totient is φ = 33644700.

The previous prime is 33869131. The next prime is 33869159. The reversal of 33869149 is 94196833.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94196833 = 283 ⋅332851.

It is a cyclic number.

It is not a de Polignac number, because 33869149 - 2¹⁷ = 33738077 is a prime.

It is a super-2 number, since 2×33869149² = 2294238507968402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33869159) 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, 111999 + ... + 112300.

It is an arithmetic number, because the mean of its divisors is an integer number (8523400).

Almost surely, 2^33869149 is an apocalyptic number.

It is an amenable number.

33869149 is a deficient number, since it is larger than the sum of its proper divisors (224451).

33869149 is a wasteful number, since it uses less digits than its factorization.

33869149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224450.

The product of its digits is 139968, while the sum is 43.

The square root of 33869149 is about 5819.7206977655. The cubic root of 33869149 is about 323.5450512855.

The spelling of 33869149 in words is "thirty-three million, eight hundred sixty-nine thousand, one hundred forty-nine".