1449273913 has 8 divisors (see below), whose sum is σ = 1461797600. Its totient is φ = 1436794848.

The previous prime is 1449273899. The next prime is 1449273961. The reversal of 1449273913 is 3193729441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1449273913 - 2¹⁷ = 1449142841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1449273913.

It is not an unprimeable number, because it can be changed into a prime (1449273983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55798 + ... + 77536.

It is an arithmetic number, because the mean of its divisors is an integer number (182724700).

Almost surely, 2^1449273913 is an apocalyptic number.

It is an amenable number.

1449273913 is a deficient number, since it is larger than the sum of its proper divisors (12523687).

1449273913 is a wasteful number, since it uses less digits than its factorization.

1449273913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22311.

The product of its digits is 163296, while the sum is 43.

The square root of 1449273913 is about 38069.3303460936. The cubic root of 1449273913 is about 1131.6622397208.

The spelling of 1449273913 in words is "one billion, four hundred forty-nine million, two hundred seventy-three thousand, nine hundred thirteen".