2045033181 has 12 divisors (see below), whose sum is σ = 2960958780. Its totient is φ = 1360114560.

The previous prime is 2045033147. The next prime is 2045033209. The reversal of 2045033181 is 1813305402.

It is a happy number.

2045033181 is a `hidden beast` number, since 2 + 0 + 450 + 33 + 181 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 489913956 + 1555119225 = 22134^2 + 39435^2 .

It is not a de Polignac number, because 2045033181 - 2⁶ = 2045033117 is a prime.

It is a super-2 number, since 2×2045033181² = 8364321422781957522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045033131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266076 + ... + 273653.

It is an arithmetic number, because the mean of its divisors is an integer number (246746565).

Almost surely, 2^2045033181 is an apocalyptic number.

It is an amenable number.

2045033181 is a deficient number, since it is larger than the sum of its proper divisors (915925599).

2045033181 is a wasteful number, since it uses less digits than its factorization.

2045033181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540156 (or 540153 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2045033181 is about 45222.0430874148. The cubic root of 2045033181 is about 1269.3073249632.

Adding to 2045033181 its reverse (1813305402), we get a palindrome (3858338583).

The spelling of 2045033181 in words is "two billion, forty-five million, thirty-three thousand, one hundred eighty-one".