61600105 has 12 divisors (see below), whose sum is σ = 85989060. Its totient is φ = 42239904.

The previous prime is 61600087. The next prime is 61600111. The reversal of 61600105 is 50100616.

It can be written as a sum of positive squares in 2 ways, for example, as 11812969 + 49787136 = 3437^2 + 7056^2 .

It is not a de Polignac number, because 61600105 - 2¹³ = 61591913 is a prime.

It is a super-2 number, since 2×61600105² = 7589145872022050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125470 + ... + 125959.

It is an arithmetic number, because the mean of its divisors is an integer number (7165755).

Almost surely, 2^61600105 is an apocalyptic number.

It is an amenable number.

61600105 is a deficient number, since it is larger than the sum of its proper divisors (24388955).

61600105 is a wasteful number, since it uses less digits than its factorization.

61600105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251448 (or 251441 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 61600105 is about 7848.5734372560. The cubic root of 61600105 is about 394.9363888379.

The spelling of 61600105 in words is "sixty-one million, six hundred thousand, one hundred five".