61343178 has 64 divisors (see below), whose sum is σ = 139829760. Its totient is φ = 17805312.

The previous prime is 61343173. The next prime is 61343179. The reversal of 61343178 is 87134316.

It is not an unprimeable number, because it can be changed into a prime (61343173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106026 + ... + 106602.

It is an arithmetic number, because the mean of its divisors is an integer number (2184840).

Almost surely, 2^61343178 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61343178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69914880).

61343178 is an abundant number, since it is smaller than the sum of its proper divisors (78486582).

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

61343178 is a wasteful number, since it uses less digits than its factorization.

61343178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671.

The product of its digits is 12096, while the sum is 33.

The square root of 61343178 is about 7832.1885830207. The cubic root of 61343178 is about 394.3865454981.

The spelling of 61343178 in words is "sixty-one million, three hundred forty-three thousand, one hundred seventy-eight".