61061061 has 8 divisors (see below), whose sum is σ = 82749664. Its totient is φ = 40039920.

The previous prime is 61061057. The next prime is 61061071. The reversal of 61061061 is 16016016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61061061 - 2² = 61061057 is a prime.

It is a Duffinian number.

61061061 is a modest number, since divided by 61061 gives 61 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61061051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166651 + ... + 167016.

It is an arithmetic number, because the mean of its divisors is an integer number (10343708).

Almost surely, 2^61061061 is an apocalyptic number.

61061061 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

61061061 is a deficient number, since it is larger than the sum of its proper divisors (21688603).

61061061 is a wasteful number, since it uses less digits than its factorization.

61061061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333731.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 61061061 is about 7814.1577281240. The cubic root of 61061061 is about 393.7810222975.

Adding to 61061061 its reverse (16016016), we get a palindrome (77077077).

The spelling of 61061061 in words is "sixty-one million, sixty-one thousand, sixty-one".