61042172 has 24 divisors (see below), whose sum is σ = 113472576. Its totient is φ = 28633088.

The previous prime is 61042141. The next prime is 61042181. The reversal of 61042172 is 27124016.

It is a super-2 number, since 2×61042172² = 7452293524955168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22733 + ... + 25275.

It is an arithmetic number, because the mean of its divisors is an integer number (4728024).

Almost surely, 2^61042172 is an apocalyptic number.

It is an amenable number.

61042172 is a deficient number, since it is larger than the sum of its proper divisors (52430404).

61042172 is a wasteful number, since it uses less digits than its factorization.

61042172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917 (or 2915 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 61042172 is about 7812.9489950978. The cubic root of 61042172 is about 393.7404132377.

Adding to 61042172 its reverse (27124016), we get a palindrome (88166188).

The spelling of 61042172 in words is "sixty-one million, forty-two thousand, one hundred seventy-two".