61772136 has 32 divisors (see below), whose sum is σ = 157347360. Its totient is φ = 20201792.

The previous prime is 61772111. The next prime is 61772143. The reversal of 61772136 is 63127716.

61772136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61772097 and 61772106.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 23010 + ... + 25553.

It is an arithmetic number, because the mean of its divisors is an integer number (4917105).

Almost surely, 2^61772136 is an apocalyptic number.

It is an amenable number.

61772136 is an abundant number, since it is smaller than the sum of its proper divisors (95575224).

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

61772136 is a wasteful number, since it uses less digits than its factorization.

61772136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48625 (or 48621 counting only the distinct ones).

The product of its digits is 10584, while the sum is 33.

The square root of 61772136 is about 7859.5251764976. The cubic root of 61772136 is about 395.3036942354.

The spelling of 61772136 in words is "sixty-one million, seven hundred seventy-two thousand, one hundred thirty-six".