61318214 has 4 divisors (see below), whose sum is σ = 91977324. Its totient is φ = 30659106.

The previous prime is 61318193. The next prime is 61318219. The reversal of 61318214 is 41281316.

61318214 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 is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61318219) 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 as a sum of consecutive naturals, namely, 15329552 + ... + 15329555.

It is an arithmetic number, because the mean of its divisors is an integer number (22994331).

Almost surely, 2^61318214 is an apocalyptic number.

61318214 is a deficient number, since it is larger than the sum of its proper divisors (30659110).

61318214 is a wasteful number, since it uses less digits than its factorization.

61318214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30659109.

The product of its digits is 1152, while the sum is 26.

The square root of 61318214 is about 7830.5947411420. The cubic root of 61318214 is about 394.3330388606. Note that the first 3 decimals are identical.

The spelling of 61318214 in words is "sixty-one million, three hundred eighteen thousand, two hundred fourteen".