152215309 has 2 divisors, whose sum is σ = 152215310. Its totient is φ = 152215308.

The previous prime is 152215249. The next prime is 152215321. The reversal of 152215309 is 903512251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88774084 + 63441225 = 9422^2 + 7965^2 .

It is a cyclic number.

It is not a de Polignac number, because 152215309 - 2²⁵ = 118660877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152215369) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76107654 + 76107655.

It is an arithmetic number, because the mean of its divisors is an integer number (76107655).

Almost surely, 2^152215309 is an apocalyptic number.

It is an amenable number.

152215309 is a deficient number, since it is larger than the sum of its proper divisors (1).

152215309 is an equidigital number, since it uses as much as digits as its factorization.

152215309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 152215309 is about 12337.5568489065. The cubic root of 152215309 is about 533.9321980901.

The spelling of 152215309 in words is "one hundred fifty-two million, two hundred fifteen thousand, three hundred nine".