152220247 has 2 divisors, whose sum is σ = 152220248. Its totient is φ = 152220246.

The previous prime is 152220241. The next prime is 152220259. The reversal of 152220247 is 742022251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 152220247 - 2⁷ = 152220119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152220241) 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, 76110123 + 76110124.

It is an arithmetic number, because the mean of its divisors is an integer number (76110124).

Almost surely, 2^152220247 is an apocalyptic number.

152220247 is a deficient number, since it is larger than the sum of its proper divisors (1).

152220247 is an equidigital number, since it uses as much as digits as its factorization.

152220247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 152220247 is about 12337.7569679419. The cubic root of 152220247 is about 533.9379717728.

Adding to 152220247 its reverse (742022251), we get a palindrome (894242498).

The spelling of 152220247 in words is "one hundred fifty-two million, two hundred twenty thousand, two hundred forty-seven".