61191794 has 4 divisors (see below), whose sum is σ = 91787694. Its totient is φ = 30595896.

The previous prime is 61191787. The next prime is 61191797. The reversal of 61191794 is 49719116.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57532225 + 3659569 = 7585^2 + 1913^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61191797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15297947 + ... + 15297950.

Almost surely, 2^61191794 is an apocalyptic number.

61191794 is a deficient number, since it is larger than the sum of its proper divisors (30595900).

61191794 is a wasteful number, since it uses less digits than its factorization.

61191794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30595899.

The product of its digits is 13608, while the sum is 38.

The square root of 61191794 is about 7822.5183924360. The cubic root of 61191794 is about 394.0618530875.

The spelling of 61191794 in words is "sixty-one million, one hundred ninety-one thousand, seven hundred ninety-four".