2045342231 has 4 divisors (see below), whose sum is σ = 2045613600. Its totient is φ = 2045070864.

The previous prime is 2045342219. The next prime is 2045342249. The reversal of 2045342231 is 1322435402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2045342231 - 2¹⁴ = 2045325847 is a prime.

It is a super-2 number, since 2×2045342231² = 8366849683824114722, 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 2045342231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045348231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124046 + ... + 139563.

It is an arithmetic number, because the mean of its divisors is an integer number (511403400).

Almost surely, 2^2045342231 is an apocalyptic number.

2045342231 is a deficient number, since it is larger than the sum of its proper divisors (271369).

2045342231 is an equidigital number, since it uses as much as digits as its factorization.

2045342231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271368.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 2045342231 is about 45225.4599866049. The cubic root of 2045342231 is about 1269.3712619322.

Adding to 2045342231 its reverse (1322435402), we get a palindrome (3367777633).

It can be divided in two parts, 204 and 5342231, that added together give a palindrome (5342435).

The spelling of 2045342231 in words is "two billion, forty-five million, three hundred forty-two thousand, two hundred thirty-one".