61261160 has 32 divisors (see below), whose sum is σ = 138061800. Its totient is φ = 24464640.

The previous prime is 61261157. The next prime is 61261169. The reversal of 61261160 is 6116216.

61261160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 28793956 + 32467204 = 5366^2 + 5698^2 .

It is not an unprimeable number, because it can be changed into a prime (61261169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43670 + ... + 45050.

Almost surely, 2^61261160 is an apocalyptic number.

It is an amenable number.

61261160 is an abundant number, since it is smaller than the sum of its proper divisors (76800640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61261160 is a wasteful number, since it uses less digits than its factorization.

61261160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501 (or 2497 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 61261160 is about 7826.9508750215. The cubic root of 61261160 is about 394.2106975135.

Adding to 61261160 its reverse (6116216), we get a palindrome (67377376).

The spelling of 61261160 in words is "sixty-one million, two hundred sixty-one thousand, one hundred sixty".