1565043132 has 12 divisors (see below), whose sum is σ = 3651767336. Its totient is φ = 521681040.

The previous prime is 1565043127. The next prime is 1565043133. The reversal of 1565043132 is 2313405651.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1565043132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1565043133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65210119 + ... + 65210142.

Almost surely, 2^1565043132 is an apocalyptic number.

1565043132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1565043132 is an abundant number, since it is smaller than the sum of its proper divisors (2086724204).

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

1565043132 is a wasteful number, since it uses less digits than its factorization.

1565043132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130420268 (or 130420266 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1565043132 is about 39560.6260314470. The cubic root of 1565043132 is about 1161.0264230540.

Adding to 1565043132 its reverse (2313405651), we get a palindrome (3878448783).

The spelling of 1565043132 in words is "one billion, five hundred sixty-five million, forty-three thousand, one hundred thirty-two".