61683136 has 14 divisors (see below), whose sum is σ = 122402600. Its totient is φ = 30841536.

The previous prime is 61683133. The next prime is 61683137. The reversal of 61683136 is 63138616.

It is a happy number.

61683136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61683133) 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 as a sum of consecutive naturals, namely, 481836 + ... + 481963.

Almost surely, 2^61683136 is an apocalyptic number.

It is an amenable number.

61683136 is a deficient number, since it is larger than the sum of its proper divisors (60719464).

61683136 is an equidigital number, since it uses as much as digits as its factorization.

61683136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963811 (or 963801 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 61683136 is about 7853.8612159880. The cubic root of 61683136 is about 395.1137545575.

The spelling of 61683136 in words is "sixty-one million, six hundred eighty-three thousand, one hundred thirty-six".