152680321 has 4 divisors (see below), whose sum is σ = 152723200. Its totient is φ = 152637444.

The previous prime is 152680313. The next prime is 152680327. The reversal of 152680321 is 123086251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123086251 = 3229 ⋅38119.

It is a cyclic number.

It is not a de Polignac number, because 152680321 - 2³ = 152680313 is a prime.

It is a super-2 number, since 2×152680321² = 46622560841326082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 152680321.

It is not an unprimeable number, because it can be changed into a prime (152680327) 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 in 3 ways as a sum of consecutive naturals, for example, 15561 + ... + 23398.

It is an arithmetic number, because the mean of its divisors is an integer number (38180800).

Almost surely, 2^152680321 is an apocalyptic number.

It is an amenable number.

152680321 is a deficient number, since it is larger than the sum of its proper divisors (42879).

152680321 is an equidigital number, since it uses as much as digits as its factorization.

152680321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42878.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 152680321 is about 12356.3878621545. The cubic root of 152680321 is about 534.4753595621.

The spelling of 152680321 in words is "one hundred fifty-two million, six hundred eighty thousand, three hundred twenty-one".