1813401122 has 8 divisors (see below), whose sum is σ = 2929340316. Its totient is φ = 836954352.

The previous prime is 1813401113. The next prime is 1813401133. The reversal of 1813401122 is 2211043181.

It can be written as a sum of positive squares in 2 ways, for example, as 1584756481 + 228644641 = 39809^2 + 15121^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34873073 + ... + 34873124.

Almost surely, 2^1813401122 is an apocalyptic number.

1813401122 is a deficient number, since it is larger than the sum of its proper divisors (1115939194).

1813401122 is a wasteful number, since it uses less digits than its factorization.

1813401122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69746212.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1813401122 is about 42584.0477409088. The cubic root of 1813401122 is about 1219.4517652312.

The spelling of 1813401122 in words is "one billion, eight hundred thirteen million, four hundred one thousand, one hundred twenty-two".