2045131 has 8 divisors (see below), whose sum is σ = 2257200. Its totient is φ = 1837440.

The previous prime is 2045129. The next prime is 2045177. The reversal of 2045131 is 1315402.

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

It is not a de Polignac number, because 2045131 - 2¹ = 2045129 is a prime.

It is a super-2 number, since 2×2045131² = 8365121614322, which contains 22 as substring.

It is an Ulam number.

2045131 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66 + ... + 2023.

It is an arithmetic number, because the mean of its divisors is an integer number (282150).

2^2045131 is an apocalyptic number.

2045131 is a deficient number, since it is larger than the sum of its proper divisors (212069).

2045131 is a wasteful number, since it uses less digits than its factorization.

2045131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2045131 is about 1430.0807669499. The cubic root of 2045131 is about 126.9327562678.

It can be divided in two parts, 204 and 5131, that added together give a palindrome (5335).

The spelling of 2045131 in words is "two million, forty-five thousand, one hundred thirty-one".