33481961 has 8 divisors (see below), whose sum is σ = 34066344. Its totient is φ = 32901120.

The previous prime is 33481957. The next prime is 33481991. The reversal of 33481961 is 16918433.

It can be written as a sum of positive squares in 4 ways, for example, as 534361 + 32947600 = 731^2 + 5740^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 33481961 - 2² = 33481957 is a prime.

It is a super-2 number, since 2×33481961² = 2242083424811042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33481991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23921 + ... + 25281.

It is an arithmetic number, because the mean of its divisors is an integer number (4258293).

Almost surely, 2^33481961 is an apocalyptic number.

It is an amenable number.

33481961 is a deficient number, since it is larger than the sum of its proper divisors (584383).

33481961 is a wasteful number, since it uses less digits than its factorization.

33481961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771.

The product of its digits is 15552, while the sum is 35.

The square root of 33481961 is about 5786.3599093039. The cubic root of 33481961 is about 322.3074138112.

The spelling of 33481961 in words is "thirty-three million, four hundred eighty-one thousand, nine hundred sixty-one".