61136900 has 36 divisors (see below), whose sum is σ = 144730320. Its totient is φ = 22231200.

The previous prime is 61136849. The next prime is 61136903. The reversal of 61136900 is 963116.

It is a super-2 number, since 2×61136900² = 7475441083220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61136900.

It is not an unprimeable number, because it can be changed into a prime (61136903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26690 + ... + 28889.

Almost surely, 2^61136900 is an apocalyptic number.

It is an amenable number.

61136900 is an abundant number, since it is smaller than the sum of its proper divisors (83593420).

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

61136900 is a wasteful number, since it uses less digits than its factorization.

61136900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55604 (or 55597 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 61136900 is about 7819.0088885996. The cubic root of 61136900 is about 393.9439826912.

The spelling of 61136900 in words is "sixty-one million, one hundred thirty-six thousand, nine hundred".