61284013 has 8 divisors (see below), whose sum is σ = 70926080. Its totient is φ = 51863760.

The previous prime is 61284001. The next prime is 61284019. The reversal of 61284013 is 31048216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61284013 - 2²¹ = 59186861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61284019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54858 + ... + 55963.

It is an arithmetic number, because the mean of its divisors is an integer number (8865760).

Almost surely, 2^61284013 is an apocalyptic number.

It is an amenable number.

61284013 is a deficient number, since it is larger than the sum of its proper divisors (9642067).

61284013 is a wasteful number, since it uses less digits than its factorization.

61284013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110907.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 61284013 is about 7828.4106305175. The cubic root of 61284013 is about 394.2597104991.

The spelling of 61284013 in words is "sixty-one million, two hundred eighty-four thousand, thirteen".