2003115949 has 2 divisors, whose sum is σ = 2003115950. Its totient is φ = 2003115948.

The previous prime is 2003115929. The next prime is 2003115997. The reversal of 2003115949 is 9495113002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1247855625 + 755260324 = 35325^2 + 27482^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003115949 - 2²¹ = 2001018797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2003115929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001557974 + 1001557975.

It is an arithmetic number, because the mean of its divisors is an integer number (1001557975).

Almost surely, 2^2003115949 is an apocalyptic number.

It is an amenable number.

2003115949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003115949 is an equidigital number, since it uses as much as digits as its factorization.

2003115949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 2003115949 is about 44756.1833605146. The cubic root of 2003115949 is about 1260.5750186794.

The spelling of 2003115949 in words is "two billion, three million, one hundred fifteen thousand, nine hundred forty-nine".