1812248061 has 16 divisors (see below), whose sum is σ = 2626081920. Its totient is φ = 1104995520.

The previous prime is 1812248057. The next prime is 1812248069. The reversal of 1812248061 is 1608422181.

It is not a de Polignac number, because 1812248061 - 2² = 1812248057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1812248069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208905 + ... + 217406.

It is an arithmetic number, because the mean of its divisors is an integer number (164130120).

Almost surely, 2^1812248061 is an apocalyptic number.

It is an amenable number.

1812248061 is a deficient number, since it is larger than the sum of its proper divisors (813833859).

1812248061 is a wasteful number, since it uses less digits than its factorization.

1812248061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426436.

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 1812248061 is about 42570.5069384897. The cubic root of 1812248061 is about 1219.1932454097.

The spelling of 1812248061 in words is "one billion, eight hundred twelve million, two hundred forty-eight thousand, sixty-one".