61061133 has 16 divisors (see below), whose sum is σ = 93248000. Its totient is φ = 34816176.

The previous prime is 61061129. The next prime is 61061149. The reversal of 61061133 is 33116016.

61061133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61061133 - 2² = 61061129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61061123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7566 + ... + 13392.

It is an arithmetic number, because the mean of its divisors is an integer number (5828000).

Almost surely, 2^61061133 is an apocalyptic number.

It is an amenable number.

61061133 is a deficient number, since it is larger than the sum of its proper divisors (32186867).

61061133 is a wasteful number, since it uses less digits than its factorization.

61061133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6336.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 61061133 is about 7814.1623351451. The cubic root of 61061133 is about 393.7811770728.

Adding to 61061133 its reverse (33116016), we get a palindrome (94177149).

The spelling of 61061133 in words is "sixty-one million, sixty-one thousand, one hundred thirty-three".