361020563 has 4 divisors (see below), whose sum is σ = 361250208. Its totient is φ = 360790920.

The previous prime is 361020559. The next prime is 361020571. The reversal of 361020563 is 365020163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365020163 = 43 ⋅8488841.

It is a cyclic number.

It is not a de Polignac number, because 361020563 - 2² = 361020559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361020503) 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, 112448 + ... + 115613.

It is an arithmetic number, because the mean of its divisors is an integer number (90312552).

Almost surely, 2^361020563 is an apocalyptic number.

361020563 is a deficient number, since it is larger than the sum of its proper divisors (229645).

361020563 is a wasteful number, since it uses less digits than its factorization.

361020563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229644.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 361020563 is about 19000.5411238733. The cubic root of 361020563 is about 712.0502551270.

The spelling of 361020563 in words is "three hundred sixty-one million, twenty thousand, five hundred sixty-three".