154353050021 has 2 divisors, whose sum is σ = 154353050022. Its totient is φ = 154353050020.

The previous prime is 154353050011. The next prime is 154353050051. The reversal of 154353050021 is 120050353451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137278401121 + 17074648900 = 370511^2 + 130670^2 .

It is a cyclic number.

It is not a de Polignac number, because 154353050021 - 2¹⁸ = 154352787877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154353050011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77176525010 + 77176525011.

It is an arithmetic number, because the mean of its divisors is an integer number (77176525011).

Almost surely, 2^154353050021 is an apocalyptic number.

It is an amenable number.

154353050021 is a deficient number, since it is larger than the sum of its proper divisors (1).

154353050021 is an equidigital number, since it uses as much as digits as its factorization.

154353050021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 154353050021 in words is "one hundred fifty-four billion, three hundred fifty-three million, fifty thousand, twenty-one".