61406172 has 36 divisors (see below), whose sum is σ = 155937600. Its totient is φ = 20374272.

The previous prime is 61406167. The next prime is 61406179. The reversal of 61406172 is 27160416.

61406172 is a `hidden beast` number, since 6 + 1 + 40 + 617 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61406179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4204 + ... + 11852.

It is an arithmetic number, because the mean of its divisors is an integer number (4331600).

Almost surely, 2^61406172 is an apocalyptic number.

It is an amenable number.

61406172 is an abundant number, since it is smaller than the sum of its proper divisors (94531428).

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

61406172 is a wasteful number, since it uses less digits than its factorization.

61406172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7882 (or 7877 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 61406172 is about 7836.2090324340. The cubic root of 61406172 is about 394.5214993078.

Adding to 61406172 its reverse (27160416), we get a palindrome (88566588).

The spelling of 61406172 in words is "sixty-one million, four hundred six thousand, one hundred seventy-two".