205415130 has 32 divisors (see below), whose sum is σ = 495129024. Its totient is φ = 54540416.

The previous prime is 205415117. The next prime is 205415143. The reversal of 205415130 is 31514502.

It is an interprime number because it is at equal distance from previous prime (205415117) and next prime (205415143).

It is a junction number, because it is equal to n+sod(n) for n = 205415097 and 205415106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7704 + ... + 21683.

It is an arithmetic number, because the mean of its divisors is an integer number (15472782).

Almost surely, 2^205415130 is an apocalyptic number.

205415130 is an abundant number, since it is smaller than the sum of its proper divisors (289713894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205415130 is a wasteful number, since it uses less digits than its factorization.

205415130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29630.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 205415130 is about 14332.3106999534. The cubic root of 205415130 is about 590.0345953094.

Adding to 205415130 its reverse (31514502), we get a palindrome (236929632).

The spelling of 205415130 in words is "two hundred five million, four hundred fifteen thousand, one hundred thirty".