61018194 has 16 divisors (see below), whose sum is σ = 122846400. Its totient is φ = 20204400.

The previous prime is 61018193. The next prime is 61018229. The reversal of 61018194 is 49181016.

It is not an unprimeable number, because it can be changed into a prime (61018193) 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, 32769 + ... + 34580.

It is an arithmetic number, because the mean of its divisors is an integer number (7677900).

Almost surely, 2^61018194 is an apocalyptic number.

61018194 is an abundant number, since it is smaller than the sum of its proper divisors (61828206).

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

61018194 is a wasteful number, since it uses less digits than its factorization.

61018194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67505.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 61018194 is about 7811.4143405660. The cubic root of 61018194 is about 393.6888513760.

The spelling of 61018194 in words is "sixty-one million, eighteen thousand, one hundred ninety-four".