61023 has 4 divisors (see below), whose sum is σ = 81368. Its totient is φ = 40680.

The previous prime is 61007. The next prime is 61027. The reversal of 61023 is 32016.

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

It is not a de Polignac number, because 61023 - 2⁴ = 61007 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61027) 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, 10168 + ... + 10173.

It is an arithmetic number, because the mean of its divisors is an integer number (20342).

2⁶¹⁰²³ is an apocalyptic number.

61023 is a deficient number, since it is larger than the sum of its proper divisors (20345).

61023 is a wasteful number, since it uses less digits than its factorization.

61023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20344.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 61023 is about 247.0283384553. The cubic root of 61023 is about 39.3699187195.

Adding to 61023 its reverse (32016), we get a palindrome (93039).

It can be divided in two parts, 6102 and 3, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 61023 in words is "sixty-one thousand, twenty-three".