61608135 has 16 divisors (see below), whose sum is σ = 98688096. Its totient is φ = 32819328.

The previous prime is 61608133. The next prime is 61608143. The reversal of 61608135 is 53180616.

It is not a de Polignac number, because 61608135 - 2¹ = 61608133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61608133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14917 + ... + 18593.

It is an arithmetic number, because the mean of its divisors is an integer number (6168006).

Almost surely, 2^61608135 is an apocalyptic number.

61608135 is a deficient number, since it is larger than the sum of its proper divisors (37079961).

61608135 is a wasteful number, since it uses less digits than its factorization.

61608135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4802.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 61608135 is about 7849.0849785182. The cubic root of 61608135 is about 394.9535489894.

The spelling of 61608135 in words is "sixty-one million, six hundred eight thousand, one hundred thirty-five".