61818002 has 8 divisors (see below), whose sum is σ = 93136176. Its totient is φ = 30772612.

The previous prime is 61817993. The next prime is 61818007. The reversal of 61818002 is 20081816.

61818002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (61818007) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 67628 + ... + 68535.

It is an arithmetic number, because the mean of its divisors is an integer number (11642022).

Almost surely, 2^61818002 is an apocalyptic number.

61818002 is a deficient number, since it is larger than the sum of its proper divisors (31318174).

61818002 is a wasteful number, since it uses less digits than its factorization.

61818002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136392.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 61818002 is about 7862.4424958152. The cubic root of 61818002 is about 395.4015080979.

Adding to 61818002 its reverse (20081816), we get a palindrome (81899818).

The spelling of 61818002 in words is "sixty-one million, eight hundred eighteen thousand, two".