152221424 has 10 divisors (see below), whose sum is σ = 294929040. Its totient is φ = 76110704.

The previous prime is 152221423. The next prime is 152221453. The reversal of 152221424 is 424122251.

It is a self number, because there is not a number n which added to its sum of digits gives 152221424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152221423) 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, 4756904 + ... + 4756935.

It is an arithmetic number, because the mean of its divisors is an integer number (29492904).

Almost surely, 2^152221424 is an apocalyptic number.

It is an amenable number.

152221424 is a deficient number, since it is larger than the sum of its proper divisors (142707616).

152221424 is an equidigital number, since it uses as much as digits as its factorization.

152221424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9513847 (or 9513841 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 152221424 is about 12337.8046669576. The cubic root of 152221424 is about 533.9393479440.

Adding to 152221424 its reverse (424122251), we get a palindrome (576343675).

The spelling of 152221424 in words is "one hundred fifty-two million, two hundred twenty-one thousand, four hundred twenty-four".