153212329 has 4 divisors (see below), whose sum is σ = 153467860. Its totient is φ = 152956800.

The previous prime is 153212309. The next prime is 153212351. The reversal of 153212329 is 923212351.

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

It can be written as a sum of positive squares in 2 ways, for example, as 94536729 + 58675600 = 9723^2 + 7660^2 .

It is a cyclic number.

It is not a de Polignac number, because 153212329 - 2²¹ = 151115177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 153212297 and 153212306.

It is not an unprimeable number, because it can be changed into a prime (153212309) 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, 126864 + ... + 128065.

It is an arithmetic number, because the mean of its divisors is an integer number (38366965).

Almost surely, 2^153212329 is an apocalyptic number.

It is an amenable number.

153212329 is a deficient number, since it is larger than the sum of its proper divisors (255531).

153212329 is an equidigital number, since it uses as much as digits as its factorization.

153212329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255530.

The product of its digits is 3240, while the sum is 28.

The square root of 153212329 is about 12377.8967922664. The cubic root of 153212329 is about 535.0954253751.

It can be divided in two parts, 1532 and 12329, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 153212329 in words is "one hundred fifty-three million, two hundred twelve thousand, three hundred twenty-nine".