61152481 has 12 divisors (see below), whose sum is σ = 66545388. Its totient is φ = 56169984.

The previous prime is 61152467. The next prime is 61152521. The reversal of 61152481 is 18425116.

61152481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 30250000 + 30902481 = 5500^2 + 5559^2 .

It is not a de Polignac number, because 61152481 - 2⁷ = 61152353 is a prime.

It is a super-2 number, since 2×61152481² = 7479251864910722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61152401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38601 + ... + 40153.

It is an arithmetic number, because the mean of its divisors is an integer number (5545449).

Almost surely, 2^61152481 is an apocalyptic number.

It is an amenable number.

61152481 is a deficient number, since it is larger than the sum of its proper divisors (5392907).

61152481 is a wasteful number, since it uses less digits than its factorization.

61152481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812 (or 1799 counting only the distinct ones).

The product of its digits is 1920, while the sum is 28.

The square root of 61152481 is about 7820.0051790264. The cubic root of 61152481 is about 393.9774459506.

Adding to 61152481 its reverse (18425116), we get a palindrome (79577597).

It can be divided in two parts, 611524 and 81, that multiplied together give a square (49533444 = 7038²).

The spelling of 61152481 in words is "sixty-one million, one hundred fifty-two thousand, four hundred eighty-one".