153720203009 has 2 divisors, whose sum is σ = 153720203010. Its totient is φ = 153720203008.

The previous prime is 153720202967. The next prime is 153720203023. The reversal of 153720203009 is 900302027351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86588947600 + 67131255409 = 294260^2 + 259097^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153720203009 is a prime.

It is not a weakly prime, because it can be changed into another prime (153720203059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76860101504 + 76860101505.

It is an arithmetic number, because the mean of its divisors is an integer number (76860101505).

Almost surely, 2^153720203009 is an apocalyptic number.

It is an amenable number.

153720203009 is a deficient number, since it is larger than the sum of its proper divisors (1).

153720203009 is an equidigital number, since it uses as much as digits as its factorization.

153720203009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 32.

The spelling of 153720203009 in words is "one hundred fifty-three billion, seven hundred twenty million, two hundred three thousand, nine".