61106305 has 8 divisors (see below), whose sum is σ = 78968232. Its totient is φ = 45124608.

The previous prime is 61106303. The next prime is 61106321. The reversal of 61106305 is 50360116.

It can be written as a sum of positive squares in 4 ways, for example, as 78961 + 61027344 = 281^2 + 7812^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 61106305 - 2¹ = 61106303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61106303) 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, 469984 + ... + 470113.

It is an arithmetic number, because the mean of its divisors is an integer number (9871029).

Almost surely, 2^61106305 is an apocalyptic number.

61106305 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61106305 is a deficient number, since it is larger than the sum of its proper divisors (17861927).

61106305 is a wasteful number, since it uses less digits than its factorization.

61106305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940115.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 61106305 is about 7817.0521937620. The cubic root of 61106305 is about 393.8782573696.

The spelling of 61106305 in words is "sixty-one million, one hundred six thousand, three hundred five".