154721768053 has 2 divisors, whose sum is σ = 154721768054. Its totient is φ = 154721768052.

The previous prime is 154721768011. The next prime is 154721768081. The reversal of 154721768053 is 350867127451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135301115889 + 19420652164 = 367833^2 + 139358^2 .

It is a cyclic number.

It is not a de Polignac number, because 154721768053 - 2²⁵ = 154688213621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154721767988 and 154721768006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154721768093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77360884026 + 77360884027.

It is an arithmetic number, because the mean of its divisors is an integer number (77360884027).

Almost surely, 2^154721768053 is an apocalyptic number.

It is an amenable number.

154721768053 is a deficient number, since it is larger than the sum of its proper divisors (1).

154721768053 is an equidigital number, since it uses as much as digits as its factorization.

154721768053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 154721768053 in words is "one hundred fifty-four billion, seven hundred twenty-one million, seven hundred sixty-eight thousand, fifty-three".