154100154326621 has 2 divisors, whose sum is σ = 154100154326622. Its totient is φ = 154100154326620.

The previous prime is 154100154326581. The next prime is 154100154326659. The reversal of 154100154326621 is 126623451001451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153420774506596 + 679379820025 = 12386314^2 + 824245^2 .

It is a cyclic number.

It is not a de Polignac number, because 154100154326621 - 2¹⁸ = 154100154064477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154100154326821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77050077163310 + 77050077163311.

It is an arithmetic number, because the mean of its divisors is an integer number (77050077163311).

Almost surely, 2^{154100154326621} is an apocalyptic number.

It is an amenable number.

154100154326621 is a deficient number, since it is larger than the sum of its proper divisors (1).

154100154326621 is an equidigital number, since it uses as much as digits as its factorization.

154100154326621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 154100154326621 in words is "one hundred fifty-four trillion, one hundred billion, one hundred fifty-four million, three hundred twenty-six thousand, six hundred twenty-one".