1812955546 has 8 divisors (see below), whose sum is σ = 2760022080. Its totient is φ = 892948188.

The previous prime is 1812955541. The next prime is 1812955567. The reversal of 1812955546 is 6455592181.

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

It is a super-3 number, since 3×1812955546³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1812955496 and 1812955505.

It is not an unprimeable number, because it can be changed into a prime (1812955541) 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, 6764626 + ... + 6764893.

It is an arithmetic number, because the mean of its divisors is an integer number (345002760).

Almost surely, 2^1812955546 is an apocalyptic number.

1812955546 is a deficient number, since it is larger than the sum of its proper divisors (947066534).

1812955546 is a wasteful number, since it uses less digits than its factorization.

1812955546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13529588.

The product of its digits is 432000, while the sum is 46.

The square root of 1812955546 is about 42578.8156951318. The cubic root of 1812955546 is about 1219.3518787173.

The spelling of 1812955546 in words is "one billion, eight hundred twelve million, nine hundred fifty-five thousand, five hundred forty-six".