1500323453 has 4 divisors (see below), whose sum is σ = 1500517020. Its totient is φ = 1500129888.

The previous prime is 1500323443. The next prime is 1500323477. The reversal of 1500323453 is 3543230051.

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

It can be written as a sum of positive squares in 2 ways, for example, as 207417604 + 1292905849 = 14402^2 + 35957^2 .

It is a cyclic number.

It is not a de Polignac number, because 1500323453 - 2¹⁰ = 1500322429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1500323413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84650 + ... + 100827.

It is an arithmetic number, because the mean of its divisors is an integer number (375129255).

Almost surely, 2^1500323453 is an apocalyptic number.

It is an amenable number.

1500323453 is a deficient number, since it is larger than the sum of its proper divisors (193567).

1500323453 is an equidigital number, since it uses as much as digits as its factorization.

1500323453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193566.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 1500323453 is about 38734.0089972623. The cubic root of 1500323453 is about 1144.7965169189.

The spelling of 1500323453 in words is "one billion, five hundred million, three hundred twenty-three thousand, four hundred fifty-three".