2009449051 has 2 divisors, whose sum is σ = 2009449052. Its totient is φ = 2009449050.

The previous prime is 2009449037. The next prime is 2009449069. The reversal of 2009449051 is 1509449002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2009449051 - 2⁵ = 2009449019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2009448998 and 2009449016.

It is not a weakly prime, because it can be changed into another prime (2009449151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1004724525 + 1004724526.

It is an arithmetic number, because the mean of its divisors is an integer number (1004724526).

Almost surely, 2^2009449051 is an apocalyptic number.

2009449051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2009449051 is an equidigital number, since it uses as much as digits as its factorization.

2009449051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 2009449051 is about 44826.8786667107. The cubic root of 2009449051 is about 1261.9021096829.

The spelling of 2009449051 in words is "two billion, nine million, four hundred forty-nine thousand, fifty-one".