61130787 has 8 divisors (see below), whose sum is σ = 82656000. Its totient is φ = 40179720.

The previous prime is 61130779. The next prime is 61130801. The reversal of 61130787 is 78703116.

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

It is not a de Polignac number, because 61130787 - 2³ = 61130779 is a prime.

It is a super-3 number, since 3×61130787³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (61130717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143287 + ... + 143712.

It is an arithmetic number, because the mean of its divisors is an integer number (10332000).

Almost surely, 2^61130787 is an apocalyptic number.

61130787 is a deficient number, since it is larger than the sum of its proper divisors (21525213).

61130787 is a wasteful number, since it uses less digits than its factorization.

61130787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287073.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 61130787 is about 7818.6179725064. The cubic root of 61130787 is about 393.9308522695.

The spelling of 61130787 in words is "sixty-one million, one hundred thirty thousand, seven hundred eighty-seven".