152720338 has 4 divisors (see below), whose sum is σ = 229080510. Its totient is φ = 76360168.

The previous prime is 152720317. The next prime is 152720341. The reversal of 152720338 is 833027251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 150626529 + 2093809 = 12273^2 + 1447^2 .

It is an unprimeable number.

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, 38180083 + ... + 38180086.

Almost surely, 2^152720338 is an apocalyptic number.

152720338 is a deficient number, since it is larger than the sum of its proper divisors (76360172).

152720338 is an equidigital number, since it uses as much as digits as its factorization.

152720338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76360171.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 152720338 is about 12358.0070399721. The cubic root of 152720338 is about 534.5220502162.

Adding to 152720338 its reverse (833027251), we get a palindrome (985747589).

The spelling of 152720338 in words is "one hundred fifty-two million, seven hundred twenty thousand, three hundred thirty-eight".