153054186821 has 2 divisors, whose sum is σ = 153054186822. Its totient is φ = 153054186820.

The previous prime is 153054186797. The next prime is 153054186851. The reversal of 153054186821 is 128681450351.

153054186821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97975260100 + 55078926721 = 313010^2 + 234689^2 .

It is a cyclic number.

It is not a de Polignac number, because 153054186821 - 2³⁰ = 151980444997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153054186851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76527093410 + 76527093411.

It is an arithmetic number, because the mean of its divisors is an integer number (76527093411).

Almost surely, 2^153054186821 is an apocalyptic number.

It is an amenable number.

153054186821 is a deficient number, since it is larger than the sum of its proper divisors (1).

153054186821 is an equidigital number, since it uses as much as digits as its factorization.

153054186821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 153054186821 in words is "one hundred fifty-three billion, fifty-four million, one hundred eighty-six thousand, eight hundred twenty-one".