152015321 has 2 divisors, whose sum is σ = 152015322. Its totient is φ = 152015320.

The previous prime is 152015299. The next prime is 152015323. The reversal of 152015321 is 123510251.

It is a happy number.

152015321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147015625 + 4999696 = 12125^2 + 2236^2 .

It is a cyclic number.

It is not a de Polignac number, because 152015321 - 2²² = 147821017 is a prime.

Together with 152015323, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 152015293 and 152015302.

It is not a weakly prime, because it can be changed into another prime (152015323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76007660 + 76007661.

It is an arithmetic number, because the mean of its divisors is an integer number (76007661).

Almost surely, 2^152015321 is an apocalyptic number.

It is an amenable number.

152015321 is a deficient number, since it is larger than the sum of its proper divisors (1).

152015321 is an equidigital number, since it uses as much as digits as its factorization.

152015321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 152015321 is about 12329.4493388797. The cubic root of 152015321 is about 533.6982600988.

Adding to 152015321 its reverse (123510251), we get a palindrome (275525572).

The spelling of 152015321 in words is "one hundred fifty-two million, fifteen thousand, three hundred twenty-one".