152305217 has 2 divisors, whose sum is σ = 152305218. Its totient is φ = 152305216.

The previous prime is 152305213. The next prime is 152305259. The reversal of 152305217 is 712503251.

152305217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132733441 + 19571776 = 11521^2 + 4424^2 .

It is a cyclic number.

It is not a de Polignac number, because 152305217 - 2² = 152305213 is a prime.

It is not a weakly prime, because it can be changed into another prime (152305211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76152608 + 76152609.

It is an arithmetic number, because the mean of its divisors is an integer number (76152609).

Almost surely, 2^152305217 is an apocalyptic number.

It is an amenable number.

152305217 is a deficient number, since it is larger than the sum of its proper divisors (1).

152305217 is an equidigital number, since it uses as much as digits as its factorization.

152305217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 152305217 is about 12341.1999821735. The cubic root of 152305217 is about 534.0373021210.

Adding to 152305217 its reverse (712503251), we get a palindrome (864808468).

The spelling of 152305217 in words is "one hundred fifty-two million, three hundred five thousand, two hundred seventeen".