2045502131 has 4 divisors (see below), whose sum is σ = 2093071992. Its totient is φ = 1997932272.

The previous prime is 2045502103. The next prime is 2045502139. The reversal of 2045502131 is 1312055402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2045502131 is a prime.

It is a super-2 number, since 2×2045502131² = 8368157935851082322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2045502097 and 2045502106.

It is not an unprimeable number, because it can be changed into a prime (2045502139) 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, 23784866 + ... + 23784951.

It is an arithmetic number, because the mean of its divisors is an integer number (523267998).

Almost surely, 2^2045502131 is an apocalyptic number.

2045502131 is a deficient number, since it is larger than the sum of its proper divisors (47569861).

2045502131 is an equidigital number, since it uses as much as digits as its factorization.

2045502131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47569860.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2045502131 is about 45227.2277616040. The cubic root of 2045502131 is about 1269.4043398809.

Adding to 2045502131 its reverse (1312055402), we get a palindrome (3357557533).

The spelling of 2045502131 in words is "two billion, forty-five million, five hundred two thousand, one hundred thirty-one".