1230530261 has 8 divisors (see below), whose sum is σ = 1308109824. Its totient is φ = 1153528000.

The previous prime is 1230530237. The next prime is 1230530293. The reversal of 1230530261 is 1620350321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230530261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230530221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139925 + ... + 148458.

It is an arithmetic number, because the mean of its divisors is an integer number (163513728).

Almost surely, 2^1230530261 is an apocalyptic number.

It is an amenable number.

1230530261 is a deficient number, since it is larger than the sum of its proper divisors (77579563).

1230530261 is a wasteful number, since it uses less digits than its factorization.

1230530261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288651.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1230530261 is about 35078.9147637153. The cubic root of 1230530261 is about 1071.5952160038.

Adding to 1230530261 its reverse (1620350321), we get a palindrome (2850880582).

The spelling of 1230530261 in words is "one billion, two hundred thirty million, five hundred thirty thousand, two hundred sixty-one".