61105078 has 16 divisors (see below), whose sum is σ = 94582080. Its totient is φ = 29592576.

The previous prime is 61105069. The next prime is 61105087. The reversal of 61105078 is 87050116.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61105069) and next prime (61105087).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4726 + ... + 12022.

It is an arithmetic number, because the mean of its divisors is an integer number (5911380).

Almost surely, 2^61105078 is an apocalyptic number.

61105078 is a deficient number, since it is larger than the sum of its proper divisors (33477002).

61105078 is a wasteful number, since it uses less digits than its factorization.

61105078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7431.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 61105078 is about 7816.9737110982. The cubic root of 61105078 is about 393.8756210248.

The spelling of 61105078 in words is "sixty-one million, one hundred five thousand, seventy-eight".