61294018 has 4 divisors (see below), whose sum is σ = 91941030. Its totient is φ = 30647008.

The previous prime is 61294007. The next prime is 61294039. The reversal of 61294018 is 81049216.

It is a happy number.

61294018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 59490369 + 1803649 = 7713^2 + 1343^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 15323503 + ... + 15323506.

Almost surely, 2^61294018 is an apocalyptic number.

61294018 is a deficient number, since it is larger than the sum of its proper divisors (30647012).

61294018 is a wasteful number, since it uses less digits than its factorization.

61294018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30647011.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 61294018 is about 7829.0496230385. The cubic root of 61294018 is about 394.2811644563.

The spelling of 61294018 in words is "sixty-one million, two hundred ninety-four thousand, eighteen".