61040135 has 16 divisors (see below), whose sum is σ = 79198560. Its totient is φ = 44895360.

The previous prime is 61040123. The next prime is 61040167. The reversal of 61040135 is 53104016.

61040135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61040135 - 2⁶ = 61040071 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15740 + ... + 19230.

It is an arithmetic number, because the mean of its divisors is an integer number (4949910).

Almost surely, 2^61040135 is an apocalyptic number.

61040135 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61040135 is a deficient number, since it is larger than the sum of its proper divisors (18158425).

61040135 is a wasteful number, since it uses less digits than its factorization.

61040135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 61040135 is about 7812.8186335023. The cubic root of 61040135 is about 393.7360334342.

The spelling of 61040135 in words is "sixty-one million, forty thousand, one hundred thirty-five".