61786130 has 16 divisors (see below), whose sum is σ = 127103040. Its totient is φ = 21183792.

The previous prime is 61786121. The next prime is 61786133. The reversal of 61786130 is 3168716.

It is not an unprimeable number, because it can be changed into a prime (61786133) 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, 441260 + ... + 441399.

It is an arithmetic number, because the mean of its divisors is an integer number (7943940).

Almost surely, 2^61786130 is an apocalyptic number.

61786130 is an abundant number, since it is smaller than the sum of its proper divisors (65316910).

61786130 is a wasteful number, since it uses less digits than its factorization.

61786130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882673.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 61786130 is about 7860.4153834260. The cubic root of 61786130 is about 395.3335429804. Note that the first 3 decimals are identical.

It can be divided in two parts, 61786 and 130, that added together give a palindrome (61916).

The spelling of 61786130 in words is "sixty-one million, seven hundred eighty-six thousand, one hundred thirty".