61282318 has 4 divisors (see below), whose sum is σ = 91923480. Its totient is φ = 30641158.

The previous prime is 61282283. The next prime is 61282321. The reversal of 61282318 is 81328216.

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

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 a self number, because there is not a number n which added to its sum of digits gives 61282318.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15320578 + ... + 15320581.

It is an arithmetic number, because the mean of its divisors is an integer number (22980870).

Almost surely, 2^61282318 is an apocalyptic number.

61282318 is a deficient number, since it is larger than the sum of its proper divisors (30641162).

61282318 is a wasteful number, since it uses less digits than its factorization.

61282318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30641161.

The product of its digits is 4608, while the sum is 31.

The square root of 61282318 is about 7828.3023702461. The cubic root of 61282318 is about 394.2560756394.

The spelling of 61282318 in words is "sixty-one million, two hundred eighty-two thousand, three hundred eighteen".