153430545244421 has 2 divisors, whose sum is σ = 153430545244422. Its totient is φ = 153430545244420.

The previous prime is 153430545244349. The next prime is 153430545244429. The reversal of 153430545244421 is 124442545034351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89421344913796 + 64009200330625 = 9456286^2 + 8000575^2 .

It is a cyclic number.

It is not a de Polignac number, because 153430545244421 - 2¹⁰ = 153430545243397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153430545244429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76715272622210 + 76715272622211.

It is an arithmetic number, because the mean of its divisors is an integer number (76715272622211).

Almost surely, 2^{153430545244421} is an apocalyptic number.

It is an amenable number.

153430545244421 is a deficient number, since it is larger than the sum of its proper divisors (1).

153430545244421 is an equidigital number, since it uses as much as digits as its factorization.

153430545244421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608000, while the sum is 47.

The spelling of 153430545244421 in words is "one hundred fifty-three trillion, four hundred thirty billion, five hundred forty-five million, two hundred forty-four thousand, four hundred twenty-one".