61305323 has 2 divisors, whose sum is σ = 61305324. Its totient is φ = 61305322.

The previous prime is 61305311. The next prime is 61305331. The reversal of 61305323 is 32350316.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61305323 is a prime.

It is not a weakly prime, because it can be changed into another prime (61308323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30652661 + 30652662.

It is an arithmetic number, because the mean of its divisors is an integer number (30652662).

Almost surely, 2^61305323 is an apocalyptic number.

61305323 is a deficient number, since it is larger than the sum of its proper divisors (1).

61305323 is an equidigital number, since it uses as much as digits as its factorization.

61305323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 61305323 is about 7829.7715803208. The cubic root of 61305323 is about 394.3054032249.

Adding to 61305323 its reverse (32350316), we get a palindrome (93655639).

The spelling of 61305323 in words is "sixty-one million, three hundred five thousand, three hundred twenty-three".