30530461 has 4 divisors (see below), whose sum is σ = 32878972. Its totient is φ = 28181952.

The previous prime is 30530449. The next prime is 30530483. The reversal of 30530461 is 16403503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18062500 + 12467961 = 4250^2 + 3531^2 .

It is a cyclic number.

It is not a de Polignac number, because 30530461 - 2⁵ = 30530429 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 (30530411) 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, 1174236 + ... + 1174261.

It is an arithmetic number, because the mean of its divisors is an integer number (8219743).

Almost surely, 2^30530461 is an apocalyptic number.

It is an amenable number.

30530461 is a deficient number, since it is larger than the sum of its proper divisors (2348511).

30530461 is a wasteful number, since it uses less digits than its factorization.

30530461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348510.

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

The square root of 30530461 is about 5525.4376297267. The cubic root of 30530461 is about 312.5439673604.

Adding to 30530461 its reverse (16403503), we get a palindrome (46933964).

The spelling of 30530461 in words is "thirty million, five hundred thirty thousand, four hundred sixty-one".