1205141660 has 12 divisors (see below), whose sum is σ = 2530797528. Its totient is φ = 482056656.

The previous prime is 1205141629. The next prime is 1205141683. The reversal of 1205141660 is 661415021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30128522 + ... + 30128561.

It is an arithmetic number, because the mean of its divisors is an integer number (210899794).

Almost surely, 2^1205141660 is an apocalyptic number.

1205141660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1205141660 is an abundant number, since it is smaller than the sum of its proper divisors (1325655868).

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

1205141660 is a wasteful number, since it uses less digits than its factorization.

1205141660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60257092 (or 60257090 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1205141660 is about 34715.1502949361. The cubic root of 1205141660 is about 1064.1741369406.

Adding to 1205141660 its reverse (661415021), we get a palindrome (1866556681).

The spelling of 1205141660 in words is "one billion, two hundred five million, one hundred forty-one thousand, six hundred sixty".