61086133 has 4 divisors (see below), whose sum is σ = 61194060. Its totient is φ = 60978208.

The previous prime is 61086131. The next prime is 61086161. The reversal of 61086133 is 33168016.

61086133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 17960644 + 43125489 = 4238^2 + 6567^2 .

It is a cyclic number.

It is not a de Polignac number, because 61086133 - 2¹ = 61086131 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 (61086131) 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 3 ways as a sum of consecutive naturals, for example, 53110 + ... + 54247.

It is an arithmetic number, because the mean of its divisors is an integer number (15298515).

Almost surely, 2^61086133 is an apocalyptic number.

It is an amenable number.

61086133 is a deficient number, since it is larger than the sum of its proper divisors (107927).

61086133 is a wasteful number, since it uses less digits than its factorization.

61086133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107926.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 61086133 is about 7815.7618310693. The cubic root of 61086133 is about 393.8349111243.

The spelling of 61086133 in words is "sixty-one million, eighty-six thousand, one hundred thirty-three".