61452321 has 12 divisors (see below), whose sum is σ = 95314032. Its totient is φ = 35115528.

The previous prime is 61452271. The next prime is 61452329. The reversal of 61452321 is 12325416.

It is not a de Polignac number, because 61452321 - 2¹⁰ = 61451297 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61452291 and 61452300.

It is not an unprimeable number, because it can be changed into a prime (61452329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208875 + ... + 209168.

It is an arithmetic number, because the mean of its divisors is an integer number (7942836).

Almost surely, 2^61452321 is an apocalyptic number.

It is an amenable number.

61452321 is a deficient number, since it is larger than the sum of its proper divisors (33861711).

61452321 is a wasteful number, since it uses less digits than its factorization.

61452321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418060 (or 418053 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 61452321 is about 7839.1530792554. The cubic root of 61452321 is about 394.6203070387.

Adding to 61452321 its reverse (12325416), we get a palindrome (73777737).

The spelling of 61452321 in words is "sixty-one million, four hundred fifty-two thousand, three hundred twenty-one".