61146713 has 4 divisors (see below), whose sum is σ = 61752228. Its totient is φ = 60541200.

The previous prime is 61146707. The next prime is 61146721. The reversal of 61146713 is 31764116.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27541504 + 33605209 = 5248^2 + 5797^2 .

It is a cyclic number.

It is not a de Polignac number, because 61146713 - 2¹² = 61142617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61146793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302606 + ... + 302807.

It is an arithmetic number, because the mean of its divisors is an integer number (15438057).

Almost surely, 2^61146713 is an apocalyptic number.

It is an amenable number.

61146713 is a deficient number, since it is larger than the sum of its proper divisors (605515).

61146713 is a wasteful number, since it uses less digits than its factorization.

61146713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605514.

The product of its digits is 3024, while the sum is 29.

The square root of 61146713 is about 7819.6363726199. The cubic root of 61146713 is about 393.9650586998.

The spelling of 61146713 in words is "sixty-one million, one hundred forty-six thousand, seven hundred thirteen".