153421441 has 4 divisors (see below), whose sum is σ = 153694512. Its totient is φ = 153148372.

The previous prime is 153421439. The next prime is 153421451. The reversal of 153421441 is 144124351.

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.

It is a cyclic number.

It is not a de Polignac number, because 153421441 - 2¹ = 153421439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153421421) 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, 135691 + ... + 136816.

It is an arithmetic number, because the mean of its divisors is an integer number (38423628).

Almost surely, 2^153421441 is an apocalyptic number.

It is an amenable number.

153421441 is a deficient number, since it is larger than the sum of its proper divisors (273071).

153421441 is an equidigital number, since it uses as much as digits as its factorization.

153421441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273070.

The product of its digits is 1920, while the sum is 25.

The square root of 153421441 is about 12386.3409043995. The cubic root of 153421441 is about 535.3387565467.

Adding to 153421441 its reverse (144124351), we get a palindrome (297545792).

The spelling of 153421441 in words is "one hundred fifty-three million, four hundred twenty-one thousand, four hundred forty-one".