61804133 has 8 divisors (see below), whose sum is σ = 64058880. Its totient is φ = 59557680.

The previous prime is 61804121. The next prime is 61804139. The reversal of 61804133 is 33140816.

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 61804133 - 2⁴ = 61804117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61804139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15848 + ... + 19358.

It is an arithmetic number, because the mean of its divisors is an integer number (8007360).

Almost surely, 2^61804133 is an apocalyptic number.

It is an amenable number.

61804133 is a deficient number, since it is larger than the sum of its proper divisors (2254747).

61804133 is a wasteful number, since it uses less digits than its factorization.

61804133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4147.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 61804133 is about 7861.5604685075. The cubic root of 61804133 is about 395.3719361636.

Adding to 61804133 its reverse (33140816), we get a palindrome (94944949).

The spelling of 61804133 in words is "sixty-one million, eight hundred four thousand, one hundred thirty-three".