61361156 has 6 divisors (see below), whose sum is σ = 107382030. Its totient is φ = 30680576.

The previous prime is 61361149. The next prime is 61361161. The reversal of 61361156 is 65116316.

It can be written as a sum of positive squares in only one way, i.e., 50694400 + 10666756 = 7120^2 + 3266^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7670141 + ... + 7670148.

It is an arithmetic number, because the mean of its divisors is an integer number (17897005).

Almost surely, 2^61361156 is an apocalyptic number.

It is an amenable number.

61361156 is a deficient number, since it is larger than the sum of its proper divisors (46020874).

61361156 is a wasteful number, since it uses less digits than its factorization.

61361156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15340293 (or 15340291 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 61361156 is about 7833.3361985810. The cubic root of 61361156 is about 394.4250696884.

The spelling of 61361156 in words is "sixty-one million, three hundred sixty-one thousand, one hundred fifty-six".