152531447 has 2 divisors, whose sum is σ = 152531448. Its totient is φ = 152531446.

The previous prime is 152531443. The next prime is 152531453. The reversal of 152531447 is 744135251.

It is a weak prime.

It is an emirp because it is prime and its reverse (744135251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 152531447 - 2² = 152531443 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152531441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76265723 + 76265724.

It is an arithmetic number, because the mean of its divisors is an integer number (76265724).

Almost surely, 2^152531447 is an apocalyptic number.

152531447 is a deficient number, since it is larger than the sum of its proper divisors (1).

152531447 is an equidigital number, since it uses as much as digits as its factorization.

152531447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 32.

The square root of 152531447 is about 12350.3622214087. The cubic root of 152531447 is about 534.3015861072.

Adding to 152531447 its reverse (744135251), we get a palindrome (896666698).

The spelling of 152531447 in words is "one hundred fifty-two million, five hundred thirty-one thousand, four hundred forty-seven".