2045071331 has 8 divisors (see below), whose sum is σ = 2068994928. Its totient is φ = 2021220000.

The previous prime is 2045071319. The next prime is 2045071337. The reversal of 2045071331 is 1331705402.

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 2045071331 - 2³⁰ = 971329507 is a prime.

It is a super-2 number, since 2×2045071331² = 8364633497756223122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2045071331.

It is not an unprimeable number, because it can be changed into a prime (2045071337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39941 + ... + 75401.

It is an arithmetic number, because the mean of its divisors is an integer number (258624366).

Almost surely, 2^2045071331 is an apocalyptic number.

2045071331 is a deficient number, since it is larger than the sum of its proper divisors (23923597).

2045071331 is a wasteful number, since it uses less digits than its factorization.

2045071331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36133.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 2045071331 is about 45222.4648930153. The cubic root of 2045071331 is about 1269.3152178707.

Adding to 2045071331 its reverse (1331705402), we get a palindrome (3376776733).

It can be divided in two parts, 2045071 and 331, that added together give a palindrome (2045402).

The spelling of 2045071331 in words is "two billion, forty-five million, seventy-one thousand, three hundred thirty-one".