2183541381 has 36 divisors (see below), whose sum is σ = 3804851232. Its totient is φ = 1247731128.

The previous prime is 2183541361. The next prime is 2183541383. The reversal of 2183541381 is 1831453812.

2183541381 is a `hidden beast` number, since 2 + 1 + 83 + 541 + 38 + 1 = 666.

It is not a de Polignac number, because 2183541381 - 2¹³ = 2183533189 is a prime.

It is a super-2 number, since 2×2183541381² = 9535705925078774322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2183541383) 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 35 ways as a sum of consecutive naturals, for example, 79785 + ... + 103598.

It is an arithmetic number, because the mean of its divisors is an integer number (105690312).

Almost surely, 2^2183541381 is an apocalyptic number.

2183541381 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2183541381 is a deficient number, since it is larger than the sum of its proper divisors (1621309851).

2183541381 is an equidigital number, since it uses as much as digits as its factorization.

2183541381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183412 (or 183393 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 2183541381 is about 46728.3787542431. The cubic root of 2183541381 is about 1297.3400009865.

The spelling of 2183541381 in words is "two billion, one hundred eighty-three million, five hundred forty-one thousand, three hundred eighty-one".