153045221 has 8 divisors (see below), whose sum is σ = 175055424. Its totient is φ = 131071680.

The previous prime is 153045173. The next prime is 153045227. The reversal of 153045221 is 122540351.

153045221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 153045221 - 2¹⁰ = 153044197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153045227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461 + ... + 17501.

It is an arithmetic number, because the mean of its divisors is an integer number (21881928).

Almost surely, 2^153045221 is an apocalyptic number.

It is an amenable number.

153045221 is a deficient number, since it is larger than the sum of its proper divisors (22010203).

153045221 is a wasteful number, since it uses less digits than its factorization.

153045221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18331.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 153045221 is about 12371.1446923880. The cubic root of 153045221 is about 534.9008125434.

Adding to 153045221 its reverse (122540351), we get a palindrome (275585572).

The spelling of 153045221 in words is "one hundred fifty-three million, forty-five thousand, two hundred twenty-one".