61172 has 12 divisors (see below), whose sum is σ = 109956. Its totient is φ = 29760.

The previous prime is 61169. The next prime is 61211. The reversal of 61172 is 27116.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15376 + 45796 = 124^2 + 214^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61172.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23 + ... + 350.

It is an arithmetic number, because the mean of its divisors is an integer number (9163).

2⁶¹¹⁷² is an apocalyptic number.

It is an amenable number.

61172 is a deficient number, since it is larger than the sum of its proper divisors (48784).

61172 is a wasteful number, since it uses less digits than its factorization.

61172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 416 counting only the distinct ones).

The product of its digits is 84, while the sum is 17.

The square root of 61172 is about 247.3297394168. The cubic root of 61172 is about 39.4019358819.

Adding to 61172 its reverse (27116), we get a palindrome (88288).

The spelling of 61172 in words is "sixty-one thousand, one hundred seventy-two".