61323443 has 2 divisors, whose sum is σ = 61323444. Its totient is φ = 61323442.

The previous prime is 61323421. The next prime is 61323499. The reversal of 61323443 is 34432316.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61323443 - 2⁸ = 61323187 is a prime.

It is a super-2 number, since 2×61323443² = 7521129322748498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61323043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30661721 + 30661722.

It is an arithmetic number, because the mean of its divisors is an integer number (30661722).

Almost surely, 2^61323443 is an apocalyptic number.

61323443 is a deficient number, since it is larger than the sum of its proper divisors (1).

61323443 is an equidigital number, since it uses as much as digits as its factorization.

61323443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 26.

The square root of 61323443 is about 7830.9286167095. The cubic root of 61323443 is about 394.3442476500.

Adding to 61323443 its reverse (34432316), we get a palindrome (95755759).

The spelling of 61323443 in words is "sixty-one million, three hundred twenty-three thousand, four hundred forty-three".