1563228967 has 4 divisors (see below), whose sum is σ = 1563482520. Its totient is φ = 1562975416.

The previous prime is 1563228943. The next prime is 1563228991. The reversal of 1563228967 is 7698223651.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1563228943) and next prime (1563228991).

It is a cyclic number.

It is not a de Polignac number, because 1563228967 - 2⁷ = 1563228839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1563228967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1563228937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117292 + ... + 129937.

It is an arithmetic number, because the mean of its divisors is an integer number (390870630).

Almost surely, 2^1563228967 is an apocalyptic number.

1563228967 is a deficient number, since it is larger than the sum of its proper divisors (253553).

1563228967 is an equidigital number, since it uses as much as digits as its factorization.

1563228967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253552.

The product of its digits is 1088640, while the sum is 49.

The square root of 1563228967 is about 39537.6904611284. The cubic root of 1563228967 is about 1160.5776371517.

The spelling of 1563228967 in words is "one billion, five hundred sixty-three million, two hundred twenty-eight thousand, nine hundred sixty-seven".