122863563 has 6 divisors (see below), whose sum is σ = 177469604. Its totient is φ = 81909036.

The previous prime is 122863537. The next prime is 122863567. The reversal of 122863563 is 365368221.

It is a happy number.

122863563 is a `hidden beast` number, since 12 + 2 + 8 + 635 + 6 + 3 = 666.

It is not a de Polignac number, because 122863563 - 2¹⁰ = 122862539 is a prime.

It is a super-2 number, since 2×122863563² = 30190910226109938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122863567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6825745 + ... + 6825762.

Almost surely, 2^122863563 is an apocalyptic number.

122863563 is a deficient number, since it is larger than the sum of its proper divisors (54606041).

122863563 is a wasteful number, since it uses less digits than its factorization.

122863563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13651513 (or 13651510 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 122863563 is about 11084.3837447104. The cubic root of 122863563 is about 497.1350326114.

The spelling of 122863563 in words is "one hundred twenty-two million, eight hundred sixty-three thousand, five hundred sixty-three".