1449321243 has 4 divisors (see below), whose sum is σ = 1932428328. Its totient is φ = 966214160.

The previous prime is 1449321233. The next prime is 1449321257. The reversal of 1449321243 is 3421239441.

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 1449321243 - 2¹⁶ = 1449255707 is a prime.

It is a super-2 number, since 2×1449321243² = 4201064130822130098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1449321233) 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, 241553538 + ... + 241553543.

It is an arithmetic number, because the mean of its divisors is an integer number (483107082).

Almost surely, 2^1449321243 is an apocalyptic number.

1449321243 is a deficient number, since it is larger than the sum of its proper divisors (483107085).

1449321243 is an equidigital number, since it uses as much as digits as its factorization.

1449321243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483107084.

The product of its digits is 20736, while the sum is 33.

The square root of 1449321243 is about 38069.9519700249. The cubic root of 1449321243 is about 1131.6745587610.

The spelling of 1449321243 in words is "one billion, four hundred forty-nine million, three hundred twenty-one thousand, two hundred forty-three".