61009078 has 16 divisors (see below), whose sum is σ = 101218320. Its totient is φ = 27396576.

The previous prime is 61009051. The next prime is 61009079. The reversal of 61009078 is 87090016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61009079) 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, 30748 + ... + 32671.

It is an arithmetic number, because the mean of its divisors is an integer number (6326145).

Almost surely, 2^61009078 is an apocalyptic number.

61009078 is a deficient number, since it is larger than the sum of its proper divisors (40209242).

61009078 is a wasteful number, since it uses less digits than its factorization.

61009078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63471.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 61009078 is about 7810.8308136843. The cubic root of 61009078 is about 393.6692449489.

The spelling of 61009078 in words is "sixty-one million, nine thousand, seventy-eight".