1450521505 has 4 divisors (see below), whose sum is σ = 1740625812. Its totient is φ = 1160417200.

The previous prime is 1450521491. The next prime is 1450521509. The reversal of 1450521505 is 5051250541.

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 370216081 + 1080305424 = 19241^2 + 32868^2 .

It is not a de Polignac number, because 1450521505 - 2⁹ = 1450520993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1450521509) 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, 145052146 + ... + 145052155.

It is an arithmetic number, because the mean of its divisors is an integer number (435156453).

Almost surely, 2^1450521505 is an apocalyptic number.

It is an amenable number.

1450521505 is a deficient number, since it is larger than the sum of its proper divisors (290104307).

1450521505 is an equidigital number, since it uses as much as digits as its factorization.

1450521505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290104306.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 1450521505 is about 38085.7126098489. The cubic root of 1450521505 is about 1131.9868730451.

The spelling of 1450521505 in words is "one billion, four hundred fifty million, five hundred twenty-one thousand, five hundred five".