152845509 has 4 divisors (see below), whose sum is σ = 203794016. Its totient is φ = 101897004.

The previous prime is 152845493. The next prime is 152845513. The reversal of 152845509 is 905548251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 905548251 = 3 ⋅301849417.

It is not a de Polignac number, because 152845509 - 2⁴ = 152845493 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 (152845529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25474249 + ... + 25474254.

It is an arithmetic number, because the mean of its divisors is an integer number (50948504).

Almost surely, 2^152845509 is an apocalyptic number.

It is an amenable number.

152845509 is a deficient number, since it is larger than the sum of its proper divisors (50948507).

152845509 is an equidigital number, since it uses as much as digits as its factorization.

152845509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50948506.

The product of its (nonzero) digits is 72000, while the sum is 39.

The square root of 152845509 is about 12363.0703710688. The cubic root of 152845509 is about 534.6680434079.

The spelling of 152845509 in words is "one hundred fifty-two million, eight hundred forty-five thousand, five hundred nine".