61086733 has 4 divisors (see below), whose sum is σ = 61220860. Its totient is φ = 60952608.

The previous prime is 61086721. The next prime is 61086737. The reversal of 61086733 is 33768016.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20088324 + 40998409 = 4482^2 + 6403^2 .

It is a cyclic number.

It is not a de Polignac number, because 61086733 - 2¹³ = 61078541 is a prime.

It is a super-3 number, since 3×61086733³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61086737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66378 + ... + 67291.

It is an arithmetic number, because the mean of its divisors is an integer number (15305215).

Almost surely, 2^61086733 is an apocalyptic number.

It is an amenable number.

61086733 is a deficient number, since it is larger than the sum of its proper divisors (134127).

61086733 is a wasteful number, since it uses less digits than its factorization.

61086733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134126.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 61086733 is about 7815.8002149492. The cubic root of 61086733 is about 393.8362005614.

The spelling of 61086733 in words is "sixty-one million, eighty-six thousand, seven hundred thirty-three".