153053333221 has 4 divisors (see below), whose sum is σ = 153193364812. Its totient is φ = 152913301632.

The previous prime is 153053333203. The next prime is 153053333261. The reversal of 153053333221 is 122333350351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122333350351 = 14249 ⋅8585399.

It can be written as a sum of positive squares in 2 ways, for example, as 136910360196 + 16142973025 = 370014^2 + 127055^2 .

It is a cyclic number.

It is not a de Polignac number, because 153053333221 - 2⁹ = 153053332709 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 (153053333261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70014156 + ... + 70016341.

It is an arithmetic number, because the mean of its divisors is an integer number (38298341203).

Almost surely, 2^153053333221 is an apocalyptic number.

It is an amenable number.

153053333221 is a deficient number, since it is larger than the sum of its proper divisors (140031591).

153053333221 is a wasteful number, since it uses less digits than its factorization.

153053333221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140031590.

The product of its (nonzero) digits is 24300, while the sum is 31.

Adding to 153053333221 its reverse (122333350351), we get a palindrome (275386683572).

The spelling of 153053333221 in words is "one hundred fifty-three billion, fifty-three million, three hundred thirty-three thousand, two hundred twenty-one".