1812414621 has 8 divisors (see below), whose sum is σ = 2416894240. Its totient is φ = 1208105712.

The previous prime is 1812414619. The next prime is 1812414649. The reversal of 1812414621 is 1264142181.

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

It is not a de Polignac number, because 1812414621 - 2¹ = 1812414619 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 (1812414661) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15415 + ... + 62148.

It is an arithmetic number, because the mean of its divisors is an integer number (302111780).

Almost surely, 2^1812414621 is an apocalyptic number.

It is an amenable number.

1812414621 is a deficient number, since it is larger than the sum of its proper divisors (604479619).

1812414621 is an equidigital number, since it uses as much as digits as its factorization.

1812414621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85355.

The product of its digits is 3072, while the sum is 30.

The square root of 1812414621 is about 42572.4631775048. The cubic root of 1812414621 is about 1219.2305954484.

The spelling of 1812414621 in words is "one billion, eight hundred twelve million, four hundred fourteen thousand, six hundred twenty-one".