816054263 has 4 divisors (see below), whose sum is σ = 816279048. Its totient is φ = 815829480.

The previous prime is 816054259. The next prime is 816054269. The reversal of 816054263 is 362450618.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362450618 = 2 ⋅181225309.

It is a cyclic number.

It is not a de Polignac number, because 816054263 - 2² = 816054259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816054269) 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, 106856 + ... + 114237.

It is an arithmetic number, because the mean of its divisors is an integer number (204069762).

Almost surely, 2^816054263 is an apocalyptic number.

816054263 is a deficient number, since it is larger than the sum of its proper divisors (224785).

816054263 is a wasteful number, since it uses less digits than its factorization.

816054263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224784.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 816054263 is about 28566.6634908594. The cubic root of 816054263 is about 934.4864588209.

The spelling of 816054263 in words is "eight hundred sixteen million, fifty-four thousand, two hundred sixty-three".