152235509 has 2 divisors, whose sum is σ = 152235510. Its totient is φ = 152235508.

The previous prime is 152235487. The next prime is 152235541. The reversal of 152235509 is 905532251.

It is an a-pointer prime, because the next prime (152235541) can be obtained adding 152235509 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126000625 + 26234884 = 11225^2 + 5122^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152235509 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152235409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76117754 + 76117755.

It is an arithmetic number, because the mean of its divisors is an integer number (76117755).

Almost surely, 2^152235509 is an apocalyptic number.

It is an amenable number.

152235509 is a deficient number, since it is larger than the sum of its proper divisors (1).

152235509 is an equidigital number, since it uses as much as digits as its factorization.

152235509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 152235509 is about 12338.3754603270. The cubic root of 152235509 is about 533.9558158489.

The spelling of 152235509 in words is "one hundred fifty-two million, two hundred thirty-five thousand, five hundred nine".