61051061 has 4 divisors (see below), whose sum is σ = 63156300. Its totient is φ = 58945824.

The previous prime is 61051051. The next prime is 61051069. The reversal of 61051061 is 16015016.

It is a happy number.

61051061 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 18879025 + 42172036 = 4345^2 + 6494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61051061 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 (61051069) 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, 1052576 + ... + 1052633.

It is an arithmetic number, because the mean of its divisors is an integer number (15789075).

Almost surely, 2^61051061 is an apocalyptic number.

It is an amenable number.

61051061 is a deficient number, since it is larger than the sum of its proper divisors (2105239).

61051061 is a wasteful number, since it uses less digits than its factorization.

61051061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105238.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 61051061 is about 7813.5178376964. The cubic root of 61051061 is about 393.7595245533.

Adding to 61051061 its reverse (16015016), we get a palindrome (77066077).

The spelling of 61051061 in words is "sixty-one million, fifty-one thousand, sixty-one".