61105494 has 32 divisors (see below), whose sum is σ = 129381120. Its totient is φ = 19206432.

The previous prime is 61105493. The next prime is 61105507. The reversal of 61105494 is 49450116.

61105494 = 3907² + 3908² + ... + 3910².

It is a happy number.

61105494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61105493) by changing a digit.

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, 3399 + ... + 11565.

It is an arithmetic number, because the mean of its divisors is an integer number (4043160).

Almost surely, 2^61105494 is an apocalyptic number.

61105494 is an abundant number, since it is smaller than the sum of its proper divisors (68275626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61105494 is a wasteful number, since it uses less digits than its factorization.

61105494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8244.

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

The square root of 61105494 is about 7817.0003198158. Note that the first 3 decimals coincide. The cubic root of 61105494 is about 393.8765148506.

The spelling of 61105494 in words is "sixty-one million, one hundred five thousand, four hundred ninety-four".