1814394053 has 4 divisors (see below), whose sum is σ = 1831039980. Its totient is φ = 1797748128.

The previous prime is 1814394047. The next prime is 1814394079. The reversal of 1814394053 is 3504934181.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1617889729 + 196504324 = 40223^2 + 14018^2 .

It is a cyclic number.

It is not a de Polignac number, because 1814394053 - 2⁶ = 1814393989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1814393998 and 1814394016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1814994053) 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, 8322800 + ... + 8323017.

It is an arithmetic number, because the mean of its divisors is an integer number (457759995).

Almost surely, 2^1814394053 is an apocalyptic number.

It is an amenable number.

1814394053 is a deficient number, since it is larger than the sum of its proper divisors (16645927).

1814394053 is a wasteful number, since it uses less digits than its factorization.

1814394053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16645926.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1814394053 is about 42595.7046308662. The cubic root of 1814394053 is about 1219.6742956126.

The spelling of 1814394053 in words is "one billion, eight hundred fourteen million, three hundred ninety-four thousand, fifty-three".