1563171132 has 24 divisors (see below), whose sum is σ = 3681490176. Its totient is φ = 516186928.

The previous prime is 1563171107. The next prime is 1563171133. The reversal of 1563171132 is 2311713651.

It is a super-2 number, since 2×1563171132² = 4887007975836322848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1563171132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1563171133) 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, 607428 + ... + 609995.

It is an arithmetic number, because the mean of its divisors is an integer number (153395424).

Almost surely, 2^1563171132 is an apocalyptic number.

1563171132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1563171132 is an abundant number, since it is smaller than the sum of its proper divisors (2118319044).

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

1563171132 is a wasteful number, since it uses less digits than its factorization.

1563171132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217537 (or 1217535 counting only the distinct ones).

The product of its digits is 3780, while the sum is 30.

The square root of 1563171132 is about 39536.9590636407. The cubic root of 1563171132 is about 1160.5633242910.

Adding to 1563171132 its reverse (2311713651), we get a palindrome (3874884783).

The spelling of 1563171132 in words is "one billion, five hundred sixty-three million, one hundred seventy-one thousand, one hundred thirty-two".