315453054645481 has 2 divisors, whose sum is σ = 315453054645482. Its totient is φ = 315453054645480.

The previous prime is 315453054645427. The next prime is 315453054645503. The reversal of 315453054645481 is 184546450354513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182983543633881 + 132469511011600 = 13527141^2 + 11509540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315453054645481 is a prime.

It is a super-2 number, since 2×315453054645481² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (315453054645581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157726527322740 + 157726527322741.

It is an arithmetic number, because the mean of its divisors is an integer number (157726527322741).

Almost surely, 2^{315453054645481} is an apocalyptic number.

It is an amenable number.

315453054645481 is a deficient number, since it is larger than the sum of its proper divisors (1).

315453054645481 is an equidigital number, since it uses as much as digits as its factorization.

315453054645481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120000, while the sum is 58.

The spelling of 315453054645481 in words is "three hundred fifteen trillion, four hundred fifty-three billion, fifty-four million, six hundred forty-five thousand, four hundred eighty-one".