152502409 has 2 divisors, whose sum is σ = 152502410. Its totient is φ = 152502408.

The previous prime is 152502377. The next prime is 152502437. The reversal of 152502409 is 904205251.

It is an a-pointer prime, because the next prime (152502437) can be obtained adding 152502409 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143520400 + 8982009 = 11980^2 + 2997^2 .

It is an emirp because it is prime and its reverse (904205251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 152502409 - 2⁵ = 152502377 is a prime.

It is not a weakly prime, because it can be changed into another prime (152502709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76251204 + 76251205.

It is an arithmetic number, because the mean of its divisors is an integer number (76251205).

Almost surely, 2^152502409 is an apocalyptic number.

It is an amenable number.

152502409 is a deficient number, since it is larger than the sum of its proper divisors (1).

152502409 is an equidigital number, since it uses as much as digits as its factorization.

152502409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 152502409 is about 12349.1865724022. The cubic root of 152502409 is about 534.2676782707.

The spelling of 152502409 in words is "one hundred fifty-two million, five hundred two thousand, four hundred nine".