61435172 has 12 divisors (see below), whose sum is σ = 107604336. Its totient is φ = 30691080.

The previous prime is 61435163. The next prime is 61435217. The reversal of 61435172 is 27153416.

61435172 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, 854 + ... + 11117.

It is an arithmetic number, because the mean of its divisors is an integer number (8967028).

Almost surely, 2^61435172 is an apocalyptic number.

It is an amenable number.

61435172 is a deficient number, since it is larger than the sum of its proper divisors (46169164).

61435172 is a wasteful number, since it uses less digits than its factorization.

61435172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13258 (or 13256 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 61435172 is about 7838.0591985516. The cubic root of 61435172 is about 394.5835957958.

Adding to 61435172 its reverse (27153416), we get a palindrome (88588588).

The spelling of 61435172 in words is "sixty-one million, four hundred thirty-five thousand, one hundred seventy-two".