61343136 has 48 divisors (see below), whose sum is σ = 178920000. Its totient is φ = 20447424.

The previous prime is 61343111. The next prime is 61343137. The reversal of 61343136 is 63134316.

61343136 is a `hidden beast` number, since 613 + 43 + 1 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (61343137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34636 + ... + 36363.

It is an arithmetic number, because the mean of its divisors is an integer number (3727500).

Almost surely, 2^61343136 is an apocalyptic number.

It is an amenable number.

61343136 is an abundant number, since it is smaller than the sum of its proper divisors (117576864).

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

61343136 is a wasteful number, since it uses less digits than its factorization.

61343136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71018 (or 71004 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 61343136 is about 7832.1859017774. The cubic root of 61343136 is about 394.3864554896.

The spelling of 61343136 in words is "sixty-one million, three hundred forty-three thousand, one hundred thirty-six".