1205531432 has 32 divisors (see below), whose sum is σ = 2601883200. Its totient is φ = 512936064.

The previous prime is 1205531419. The next prime is 1205531449. The reversal of 1205531432 is 2341355021.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69653 + ... + 85220.

It is an arithmetic number, because the mean of its divisors is an integer number (81308850).

Almost surely, 2^1205531432 is an apocalyptic number.

It is an amenable number.

1205531432 is an abundant number, since it is smaller than the sum of its proper divisors (1396351768).

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

1205531432 is a wasteful number, since it uses less digits than its factorization.

1205531432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155025 (or 155021 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1205531432 is about 34720.7637012782. The cubic root of 1205531432 is about 1064.2888511373.

Adding to 1205531432 its reverse (2341355021), we get a palindrome (3546886453).

The spelling of 1205531432 in words is "one billion, two hundred five million, five hundred thirty-one thousand, four hundred thirty-two".