1205545516 has 24 divisors (see below), whose sum is σ = 2537991680. Its totient is φ = 489469392.

The previous prime is 1205545513. The next prime is 1205545553. The reversal of 1205545516 is 6155455021.

It is a super-2 number, since 2×1205545516² = 2906679982295412512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1205545513) 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, 1132500 + ... + 1133563.

Almost surely, 2^1205545516 is an apocalyptic number.

It is an amenable number.

1205545516 is an abundant number, since it is smaller than the sum of its proper divisors (1332446164).

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

1205545516 is a wasteful number, since it uses less digits than its factorization.

1205545516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266093 (or 2266091 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

The square root of 1205545516 is about 34720.9665188053. The cubic root of 1205545516 is about 1064.2929957509.

The spelling of 1205545516 in words is "one billion, two hundred five million, five hundred forty-five thousand, five hundred sixteen".