61004530 has 16 divisors (see below), whose sum is σ = 112362624. Its totient is φ = 23834160.

The previous prime is 61004513. The next prime is 61004557. The reversal of 61004530 is 3540016.

It is a junction number, because it is equal to n+sod(n) for n = 61004498 and 61004507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70506 + ... + 71365.

It is an arithmetic number, because the mean of its divisors is an integer number (7022664).

Almost surely, 2^61004530 is an apocalyptic number.

61004530 is a deficient number, since it is larger than the sum of its proper divisors (51358094).

61004530 is a wasteful number, since it uses less digits than its factorization.

61004530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141921.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 61004530 is about 7810.5396740558. The cubic root of 61004530 is about 393.6594625129.

Adding to 61004530 its reverse (3540016), we get a palindrome (64544546).

The spelling of 61004530 in words is "sixty-one million, four thousand, five hundred thirty".