61481223 has 6 divisors (see below), whose sum is σ = 88806224. Its totient is φ = 40987476.

The previous prime is 61481221. The next prime is 61481239. The reversal of 61481223 is 32218416.

It is not a de Polignac number, because 61481223 - 2¹ = 61481221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61481221) 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 5 ways as a sum of consecutive naturals, for example, 3415615 + ... + 3415632.

Almost surely, 2^61481223 is an apocalyptic number.

61481223 is a deficient number, since it is larger than the sum of its proper divisors (27325001).

61481223 is a wasteful number, since it uses less digits than its factorization.

61481223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6831253 (or 6831250 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 61481223 is about 7840.9963014913. The cubic root of 61481223 is about 394.6821627363.

Adding to 61481223 its reverse (32218416), we get a palindrome (93699639).

The spelling of 61481223 in words is "sixty-one million, four hundred eighty-one thousand, two hundred twenty-three".