61493 has 2 divisors, whose sum is σ = 61494. Its totient is φ = 61492.

The previous prime is 61487. The next prime is 61507. The reversal of 61493 is 39416.

61493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61009 + 484 = 247^2 + 22^2 .

It is a cyclic number.

It is not a de Polignac number, because 61493 - 2¹² = 57397 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 61493.

It is not a weakly prime, because it can be changed into another prime (61403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30746 + 30747.

It is an arithmetic number, because the mean of its divisors is an integer number (30747).

2⁶¹⁴⁹³ is an apocalyptic number.

It is an amenable number.

61493 is a deficient number, since it is larger than the sum of its proper divisors (1).

61493 is an equidigital number, since it uses as much as digits as its factorization.

61493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 61493 is about 247.9778215889. The cubic root of 61493 is about 39.4707362165.

Adding to 61493 its sum of digits (23), we get a palindrome (61516).

It can be divided in two parts, 614 and 93, that added together give a palindrome (707).

The spelling of 61493 in words is "sixty-one thousand, four hundred ninety-three".