20630141 has 8 divisors (see below), whose sum is σ = 23612544. Its totient is φ = 17656560.

The previous prime is 20630123. The next prime is 20630147. The reversal of 20630141 is 14103602.

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-20630141 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 (20630147) 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, 3971 + ... + 7551.

It is an arithmetic number, because the mean of its divisors is an integer number (2951568).

Almost surely, 2^20630141 is an apocalyptic number.

It is an amenable number.

20630141 is a deficient number, since it is larger than the sum of its proper divisors (2982403).

20630141 is an equidigital number, since it uses as much as digits as its factorization.

20630141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4411.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 20630141 is about 4542.0415013516. The cubic root of 20630141 is about 274.2631114988.

Adding to 20630141 its reverse (14103602), we get a palindrome (34733743).

The spelling of 20630141 in words is "twenty million, six hundred thirty thousand, one hundred forty-one".