61423 has 4 divisors (see below), whose sum is σ = 61920. Its totient is φ = 60928.

The previous prime is 61417. The next prime is 61441. The reversal of 61423 is 32416.

61423 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

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 is a cyclic number.

It is not a de Polignac number, because 61423 - 2¹³ = 53231 is a prime.

It is a Duffinian number.

61423 is an undulating number in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 61397 and 61406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61403) 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, 111 + ... + 367.

It is an arithmetic number, because the mean of its divisors is an integer number (15480).

2⁶¹⁴²³ is an apocalyptic number.

61423 is a deficient number, since it is larger than the sum of its proper divisors (497).

61423 is a wasteful number, since it uses less digits than its factorization.

61423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496.

The product of its digits is 144, while the sum is 16.

The square root of 61423 is about 247.8366397448. The cubic root of 61423 is about 39.4557534781.

Adding to 61423 its reverse (32416), we get a palindrome (93839).

It can be divided in two parts, 61 and 423, that added together give a palindrome (484).

The spelling of 61423 in words is "sixty-one thousand, four hundred twenty-three".