15454142161 has 2 divisors, whose sum is σ = 15454142162. Its totient is φ = 15454142160.

The previous prime is 15454142117. The next prime is 15454142201. The reversal of 15454142161 is 16124145451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14903770561 + 550371600 = 122081^2 + 23460^2 .

It is an emirp because it is prime and its reverse (16124145451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15454142161 - 2¹¹ = 15454140113 is a prime.

It is not a weakly prime, because it can be changed into another prime (15454146161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7727071080 + 7727071081.

It is an arithmetic number, because the mean of its divisors is an integer number (7727071081).

Almost surely, 2^15454142161 is an apocalyptic number.

It is an amenable number.

15454142161 is a deficient number, since it is larger than the sum of its proper divisors (1).

15454142161 is an equidigital number, since it uses as much as digits as its factorization.

15454142161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19200, while the sum is 34.

The spelling of 15454142161 in words is "fifteen billion, four hundred fifty-four million, one hundred forty-two thousand, one hundred sixty-one".