205127030 has 16 divisors (see below), whose sum is σ = 373678704. Its totient is φ = 81061920.

The previous prime is 205127029. The next prime is 205127033. The reversal of 205127030 is 30721502.

It is a junction number, because it is equal to n+sod(n) for n = 205126993 and 205127011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205127033) 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, 122741 + ... + 124400.

It is an arithmetic number, because the mean of its divisors is an integer number (23354919).

Almost surely, 2^205127030 is an apocalyptic number.

205127030 is a deficient number, since it is larger than the sum of its proper divisors (168551674).

205127030 is a wasteful number, since it uses less digits than its factorization.

205127030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247231.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 205127030 is about 14322.2564562991. The cubic root of 205127030 is about 589.7586200194.

Adding to 205127030 its reverse (30721502), we get a palindrome (235848532).

The spelling of 205127030 in words is "two hundred five million, one hundred twenty-seven thousand, thirty".