61134021 has 20 divisors (see below), whose sum is σ = 98350252. Its totient is φ = 37620288.

The previous prime is 61134019. The next prime is 61134037. The reversal of 61134021 is 12043116.

It is a happy number.

61134021 is a `hidden beast` number, since 611 + 34 + 0 + 21 = 666.

61134021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 17969121 + 43164900 = 4239^2 + 6570^2 .

It is not a de Polignac number, because 61134021 - 2¹ = 61134019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61133985 and 61134003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61134041) 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 19 ways as a sum of consecutive naturals, for example, 27976 + ... + 30081.

Almost surely, 2^61134021 is an apocalyptic number.

It is an amenable number.

61134021 is a deficient number, since it is larger than the sum of its proper divisors (37216231).

61134021 is a wasteful number, since it uses less digits than its factorization.

61134021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58082 (or 58073 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 61134021 is about 7818.8247838150. The cubic root of 61134021 is about 393.9377988506.

Adding to 61134021 its reverse (12043116), we get a palindrome (73177137).

The spelling of 61134021 in words is "sixty-one million, one hundred thirty-four thousand, twenty-one".