1532009 has 2 divisors, whose sum is σ = 1532010. Its totient is φ = 1532008.

The previous prime is 1531997. The next prime is 1532017. The reversal of 1532009 is 9002351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1507984 + 24025 = 1228^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 1532009 - 2¹⁶ = 1466473 is a prime.

It is not a weakly prime, because it can be changed into another prime (1532029) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766004 + 766005.

It is an arithmetic number, because the mean of its divisors is an integer number (766005).

2^1532009 is an apocalyptic number.

It is an amenable number.

1532009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1532009 is an equidigital number, since it uses as much as digits as its factorization.

1532009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1532009 is about 1237.7435113948. The cubic root of 1532009 is about 115.2799480804.

The spelling of 1532009 in words is "one million, five hundred thirty-two thousand, nine".