61005394 has 8 divisors (see below), whose sum is σ = 91542780. Its totient is φ = 30491136.

The previous prime is 61005383. The next prime is 61005397. The reversal of 61005394 is 49350016.

It can be written as a sum of positive squares in 2 ways, for example, as 57988225 + 3017169 = 7615^2 + 1737^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (61005397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4402 + ... + 11890.

Almost surely, 2^61005394 is an apocalyptic number.

61005394 is a deficient number, since it is larger than the sum of its proper divisors (30537386).

61005394 is a wasteful number, since it uses less digits than its factorization.

61005394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11564.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 61005394 is about 7810.5949837384. The cubic root of 61005394 is about 393.6613209550.

The spelling of 61005394 in words is "sixty-one million, five thousand, three hundred ninety-four".