153796321 has 4 divisors (see below), whose sum is σ = 175767232. Its totient is φ = 131825412.

The previous prime is 153796259. The next prime is 153796333. The reversal of 153796321 is 123697351.

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: 123697351 = 139 ⋅889909.

It is a cyclic number.

It is not a de Polignac number, because 153796321 - 2⁹ = 153795809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153796381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10985445 + ... + 10985458.

It is an arithmetic number, because the mean of its divisors is an integer number (43941808).

Almost surely, 2^153796321 is an apocalyptic number.

It is an amenable number.

153796321 is a deficient number, since it is larger than the sum of its proper divisors (21970911).

153796321 is an equidigital number, since it uses as much as digits as its factorization.

153796321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21970910.

The product of its digits is 34020, while the sum is 37.

The square root of 153796321 is about 12401.4644699729. The cubic root of 153796321 is about 535.7744291519.

The spelling of 153796321 in words is "one hundred fifty-three million, seven hundred ninety-six thousand, three hundred twenty-one".