1449051903 has 32 divisors (see below), whose sum is σ = 2391614400. Its totient is φ = 860969088.

The previous prime is 1449051893. The next prime is 1449051917. The reversal of 1449051903 is 3091509441.

It is a happy number.

It is not a de Polignac number, because 1449051903 - 2⁵ = 1449051871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1449051943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61000 + ... + 81357.

It is an arithmetic number, because the mean of its divisors is an integer number (74737950).

Almost surely, 2^1449051903 is an apocalyptic number.

1449051903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1449051903 is a deficient number, since it is larger than the sum of its proper divisors (942562497).

1449051903 is a wasteful number, since it uses less digits than its factorization.

1449051903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142408 (or 142402 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1449051903 is about 38066.4143701505. The cubic root of 1449051903 is about 1131.6044514353.

The spelling of 1449051903 in words is "one billion, four hundred forty-nine million, fifty-one thousand, nine hundred three".