1449129899 has 4 divisors (see below), whose sum is σ = 1656148464. Its totient is φ = 1242111336.

The previous prime is 1449129893. The next prime is 1449129911. The reversal of 1449129899 is 9989219441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1449129899 - 2¹² = 1449125803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1449129893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103509272 + ... + 103509285.

It is an arithmetic number, because the mean of its divisors is an integer number (414037116).

Almost surely, 2^1449129899 is an apocalyptic number.

1449129899 is a deficient number, since it is larger than the sum of its proper divisors (207018565).

1449129899 is an equidigital number, since it uses as much as digits as its factorization.

1449129899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207018564.

The product of its digits is 1679616, while the sum is 56.

The square root of 1449129899 is about 38067.4388290045. The cubic root of 1449129899 is about 1131.6247541443.

The spelling of 1449129899 in words is "one billion, four hundred forty-nine million, one hundred twenty-nine thousand, eight hundred ninety-nine".