33097481 has 4 divisors (see below), whose sum is σ = 33264000. Its totient is φ = 32930964.

The previous prime is 33097469. The next prime is 33097513. The reversal of 33097481 is 18479033.

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: 18479033 = 53 ⋅348661.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33097481 is a prime.

It is a super-2 number, since 2×33097481² = 2190886497090722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33097451) 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, 82961 + ... + 83358.

It is an arithmetic number, because the mean of its divisors is an integer number (8316000).

Almost surely, 2^33097481 is an apocalyptic number.

It is an amenable number.

33097481 is a deficient number, since it is larger than the sum of its proper divisors (166519).

33097481 is a wasteful number, since it uses less digits than its factorization.

33097481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166518.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 33097481 is about 5753.0410219292. The cubic root of 33097481 is about 321.0689544967.

The spelling of 33097481 in words is "thirty-three million, ninety-seven thousand, four hundred eighty-one".