1563142834 has 8 divisors (see below), whose sum is σ = 2557870128. Its totient is φ = 710519460.

The previous prime is 1563142817. The next prime is 1563142849. The reversal of 1563142834 is 4382413651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1563142793 and 1563142802.

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 3 ways as a sum of consecutive naturals, for example, 35525952 + ... + 35525995.

It is an arithmetic number, because the mean of its divisors is an integer number (319733766).

Almost surely, 2^1563142834 is an apocalyptic number.

1563142834 is a deficient number, since it is larger than the sum of its proper divisors (994727294).

1563142834 is a wasteful number, since it uses less digits than its factorization.

1563142834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71051960.

The product of its digits is 69120, while the sum is 37.

The square root of 1563142834 is about 39536.6011943364. The cubic root of 1563142834 is about 1160.5563210443.

The spelling of 1563142834 in words is "one billion, five hundred sixty-three million, one hundred forty-two thousand, eight hundred thirty-four".