61136 has 10 divisors (see below), whose sum is σ = 118482. Its totient is φ = 30560.

The previous prime is 61129. The next prime is 61141. The reversal of 61136 is 63116.

It can be written as a sum of positive squares in only one way, i.e., 59536 + 1600 = 244^2 + 40^2 .

It is a super-2 number, since 2×61136² = 7475220992, which contains 22 as substring.

It is an Ulam number.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1895 + ... + 1926.

2⁶¹¹³⁶ is an apocalyptic number.

It is an amenable number.

61136 is a deficient number, since it is larger than the sum of its proper divisors (57346).

61136 is a wasteful number, since it uses less digits than its factorization.

61136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3829 (or 3823 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 61136 is about 247.2569513684. The cubic root of 61136 is about 39.3942049591.

The spelling of 61136 in words is "sixty-one thousand, one hundred thirty-six".