1450321491 has 4 divisors (see below), whose sum is σ = 1933761992. Its totient is φ = 966880992.

The previous prime is 1450321487. The next prime is 1450321507. The reversal of 1450321491 is 1941230541.

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

It is not a de Polignac number, because 1450321491 - 2² = 1450321487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1450321451) 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, 241720246 + ... + 241720251.

It is an arithmetic number, because the mean of its divisors is an integer number (483440498).

Almost surely, 2^1450321491 is an apocalyptic number.

1450321491 is a deficient number, since it is larger than the sum of its proper divisors (483440501).

1450321491 is an equidigital number, since it uses as much as digits as its factorization.

1450321491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483440500.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1450321491 is about 38083.0866789970. The cubic root of 1450321491 is about 1131.9348403499.

The spelling of 1450321491 in words is "one billion, four hundred fifty million, three hundred twenty-one thousand, four hundred ninety-one".