2045503431 has 12 divisors (see below), whose sum is σ = 2960948952. Its totient is φ = 1360746096.

The previous prime is 2045503417. The next prime is 2045503441. The reversal of 2045503431 is 1343055402.

It is not a de Polignac number, because 2045503431 - 2¹¹ = 2045501383 is a prime.

It is a super-2 number, since 2×2045503431² = 8368168572465543522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2045503395 and 2045503404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045503441) 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, 239136 + ... + 247541.

It is an arithmetic number, because the mean of its divisors is an integer number (246745746).

Almost surely, 2^2045503431 is an apocalyptic number.

2045503431 is a deficient number, since it is larger than the sum of its proper divisors (915445521).

2045503431 is a wasteful number, since it uses less digits than its factorization.

2045503431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487150 (or 487147 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2045503431 is about 45227.2421334753. The cubic root of 2045503431 is about 1269.4046088002.

Adding to 2045503431 its reverse (1343055402), we get a palindrome (3388558833).

The spelling of 2045503431 in words is "two billion, forty-five million, five hundred three thousand, four hundred thirty-one".