2045544437 has 2 divisors, whose sum is σ = 2045544438. Its totient is φ = 2045544436.

The previous prime is 2045544373. The next prime is 2045544509. The reversal of 2045544437 is 7344455402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1221222916 + 824321521 = 34946^2 + 28711^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045544437 - 2⁶ = 2045544373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2045544437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2045544037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022772218 + 1022772219.

It is an arithmetic number, because the mean of its divisors is an integer number (1022772219).

Almost surely, 2^2045544437 is an apocalyptic number.

It is an amenable number.

2045544437 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045544437 is an equidigital number, since it uses as much as digits as its factorization.

2045544437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 268800, while the sum is 38.

The square root of 2045544437 is about 45227.6954641733. The cubic root of 2045544437 is about 1269.4130912854.

Adding to 2045544437 its reverse (7344455402), we get a palindrome (9389999839).

The spelling of 2045544437 in words is "two billion, forty-five million, five hundred forty-four thousand, four hundred thirty-seven".