152301509 has 4 divisors (see below), whose sum is σ = 156417804. Its totient is φ = 148185216.

The previous prime is 152301503. The next prime is 152301547. The reversal of 152301509 is 905103251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 905103251 = 13 ⋅69623327.

It can be written as a sum of positive squares in 2 ways, for example, as 80102500 + 72199009 = 8950^2 + 8497^2 .

It is a cyclic number.

It is not a de Polignac number, because 152301509 - 2¹² = 152297413 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 (152301503) 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, 2058092 + ... + 2058165.

It is an arithmetic number, because the mean of its divisors is an integer number (39104451).

Almost surely, 2^152301509 is an apocalyptic number.

It is an amenable number.

152301509 is a deficient number, since it is larger than the sum of its proper divisors (4116295).

152301509 is an equidigital number, since it uses as much as digits as its factorization.

152301509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4116294.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 152301509 is about 12341.0497527560. The cubic root of 152301509 is about 534.0329682218.

The spelling of 152301509 in words is "one hundred fifty-two million, three hundred one thousand, five hundred nine".