152340321 has 16 divisors (see below), whose sum is σ = 234748800. Its totient is φ = 86072448.

The previous prime is 152340313. The next prime is 152340323. The reversal of 152340321 is 123043251.

It is not a de Polignac number, because 152340321 - 2³ = 152340313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (152340323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38886 + ... + 42623.

It is an arithmetic number, because the mean of its divisors is an integer number (14671800).

Almost surely, 2^152340321 is an apocalyptic number.

It is an amenable number.

152340321 is a deficient number, since it is larger than the sum of its proper divisors (82408479).

152340321 is an equidigital number, since it uses as much as digits as its factorization.

152340321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81608.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 152340321 is about 12342.6221282189. The cubic root of 152340321 is about 534.0783280857.

Adding to 152340321 its reverse (123043251), we get a palindrome (275383572).

The spelling of 152340321 in words is "one hundred fifty-two million, three hundred forty thousand, three hundred twenty-one".