61189412 has 12 divisors (see below), whose sum is σ = 110535936. Its totient is φ = 29607720.

The previous prime is 61189399. The next prime is 61189451. The reversal of 61189412 is 21498116.

61189412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 246608 + ... + 246855.

It is an arithmetic number, because the mean of its divisors is an integer number (9211328).

Almost surely, 2^61189412 is an apocalyptic number.

61189412 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

61189412 is a deficient number, since it is larger than the sum of its proper divisors (49346524).

61189412 is a wasteful number, since it uses less digits than its factorization.

61189412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493498 (or 493496 counting only the distinct ones).

The product of its digits is 3456, while the sum is 32.

The square root of 61189412 is about 7822.3661381963. The cubic root of 61189412 is about 394.0567398337.

The spelling of 61189412 in words is "sixty-one million, one hundred eighty-nine thousand, four hundred twelve".