152322991 has 2 divisors, whose sum is σ = 152322992. Its totient is φ = 152322990.

The previous prime is 152322979. The next prime is 152323013. The reversal of 152322991 is 199223251.

It is a weak prime.

It is an emirp because it is prime and its reverse (199223251) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152322991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152322971) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76161495 + 76161496.

It is an arithmetic number, because the mean of its divisors is an integer number (76161496).

Almost surely, 2^152322991 is an apocalyptic number.

152322991 is a deficient number, since it is larger than the sum of its proper divisors (1).

152322991 is an equidigital number, since it uses as much as digits as its factorization.

152322991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 34.

The square root of 152322991 is about 12341.9200694219. The cubic root of 152322991 is about 534.0580753420.

The spelling of 152322991 in words is "one hundred fifty-two million, three hundred twenty-two thousand, nine hundred ninety-one".