46812181 has 8 divisors (see below), whose sum is σ = 53066720. Its totient is φ = 40936752.

The previous prime is 46812173. The next prime is 46812209. The reversal of 46812181 is 18121864.

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

It is a cyclic number.

It is not a de Polignac number, because 46812181 - 2³ = 46812173 is a prime.

It is a super-2 number, since 2×46812181² = 4382760579953522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46812481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94515 + ... + 95008.

It is an arithmetic number, because the mean of its divisors is an integer number (6633340).

Almost surely, 2^46812181 is an apocalyptic number.

It is an amenable number.

46812181 is a deficient number, since it is larger than the sum of its proper divisors (6254539).

46812181 is a wasteful number, since it uses less digits than its factorization.

46812181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189555.

The product of its digits is 3072, while the sum is 31.

The square root of 46812181 is about 6841.9427796497. The cubic root of 46812181 is about 360.4012527041.

The spelling of 46812181 in words is "forty-six million, eight hundred twelve thousand, one hundred eighty-one".