61043530 has 8 divisors (see below), whose sum is σ = 109878372. Its totient is φ = 24417408.

The previous prime is 61043527. The next prime is 61043539. The reversal of 61043530 is 3534016.

It can be written as a sum of positive squares in 2 ways, for example, as 58844241 + 2199289 = 7671^2 + 1483^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (61043539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3052167 + ... + 3052186.

Almost surely, 2^61043530 is an apocalyptic number.

61043530 is a deficient number, since it is larger than the sum of its proper divisors (48834842).

61043530 is a wasteful number, since it uses less digits than its factorization.

61043530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6104360.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 61043530 is about 7813.0359016198. The cubic root of 61043530 is about 393.7433330525.

Adding to 61043530 its reverse (3534016), we get a palindrome (64577546).

The spelling of 61043530 in words is "sixty-one million, forty-three thousand, five hundred thirty".