61189 has 4 divisors (see below), whose sum is σ = 62656. Its totient is φ = 59724.

The previous prime is 61169. The next prime is 61211. The reversal of 61189 is 98116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61189 - 2¹¹ = 59141 is a prime.

It is a Duffinian number.

61189 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669 + ... + 754.

It is an arithmetic number, because the mean of its divisors is an integer number (15664).

2⁶¹¹⁸⁹ is an apocalyptic number.

It is an amenable number.

61189 is a deficient number, since it is larger than the sum of its proper divisors (1467).

61189 is a wasteful number, since it uses less digits than its factorization.

61189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466.

The product of its digits is 432, while the sum is 25.

The square root of 61189 is about 247.3641041057. The cubic root of 61189 is about 39.4055855412.

The spelling of 61189 in words is "sixty-one thousand, one hundred eighty-nine".