61065105 has 32 divisors (see below), whose sum is σ = 104519808. Its totient is φ = 30336000.

The previous prime is 61065101. The next prime is 61065119. The reversal of 61065105 is 50156016.

It is not a de Polignac number, because 61065105 - 2² = 61065101 is a prime.

It is a super-2 number, since 2×61065105² = 7457894097322050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61065101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24570 + ... + 26940.

It is an arithmetic number, because the mean of its divisors is an integer number (3266244).

Almost surely, 2^61065105 is an apocalyptic number.

It is an amenable number.

61065105 is a deficient number, since it is larger than the sum of its proper divisors (43454703).

61065105 is a wasteful number, since it uses less digits than its factorization.

61065105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 61065105 is about 7814.4164849335. The cubic root of 61065105 is about 393.7897153188.

It can be divided in two parts, 6106 and 5105, that added together give a palindrome (11211).

The spelling of 61065105 in words is "sixty-one million, sixty-five thousand, one hundred five".