61069 has 4 divisors (see below), whose sum is σ = 61596. Its totient is φ = 60544.

The previous prime is 61057. The next prime is 61091. The reversal of 61069 is 96016.

61069 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 42025 + 19044 = 205^2 + 138^2 .

It is a cyclic number.

It is not a de Polignac number, because 61069 - 2¹¹ = 59021 is a prime.

It is a super-2 number, since 2×61069² = 7458845522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

61069 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61099) 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, 4 + ... + 349.

It is an arithmetic number, because the mean of its divisors is an integer number (15399).

2⁶¹⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

61069 is a deficient number, since it is larger than the sum of its proper divisors (527).

61069 is a wasteful number, since it uses less digits than its factorization.

61069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 61069 is about 247.1214276424. The cubic root of 61069 is about 39.3798087685.

The spelling of 61069 in words is "sixty-one thousand, sixty-nine".