61159 has 4 divisors (see below), whose sum is σ = 69904. Its totient is φ = 52416.

The previous prime is 61153. The next prime is 61169. The reversal of 61159 is 95116.

61159 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61159 - 2³ = 61151 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61151) 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, 4362 + ... + 4375.

It is an arithmetic number, because the mean of its divisors is an integer number (17476).

2⁶¹¹⁵⁹ is an apocalyptic number.

61159 is a deficient number, since it is larger than the sum of its proper divisors (8745).

61159 is an equidigital number, since it uses as much as digits as its factorization.

61159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8744.

The product of its digits is 270, while the sum is 22.

The square root of 61159 is about 247.3034573151. The cubic root of 61159 is about 39.3991445098.

The spelling of 61159 in words is "sixty-one thousand, one hundred fifty-nine".