2002045957 has 2 divisors, whose sum is σ = 2002045958. Its totient is φ = 2002045956.

The previous prime is 2002045939. The next prime is 2002045993. The reversal of 2002045957 is 7595402002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1340218881 + 661827076 = 36609^2 + 25726^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002045957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002045057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001022978 + 1001022979.

It is an arithmetic number, because the mean of its divisors is an integer number (1001022979).

Almost surely, 2^2002045957 is an apocalyptic number.

It is an amenable number.

2002045957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002045957 is an equidigital number, since it uses as much as digits as its factorization.

2002045957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 2002045957 is about 44744.2281976123. The cubic root of 2002045957 is about 1260.3505275279.

Adding to 2002045957 its reverse (7595402002), we get a palindrome (9597447959).

It can be divided in two parts, 2002045 and 957, that added together give a palindrome (2003002).

The spelling of 2002045957 in words is "two billion, two million, forty-five thousand, nine hundred fifty-seven".