15154144081 has 2 divisors, whose sum is σ = 15154144082. Its totient is φ = 15154144080.

The previous prime is 15154144043. The next prime is 15154144099. The reversal of 15154144081 is 18044145151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9647168400 + 5506975681 = 98220^2 + 74209^2 .

It is a cyclic number.

It is not a de Polignac number, because 15154144081 - 2¹³ = 15154135889 is a prime.

It is a super-2 number, since 2×15154144081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15154144381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7577072040 + 7577072041.

It is an arithmetic number, because the mean of its divisors is an integer number (7577072041).

Almost surely, 2^15154144081 is an apocalyptic number.

It is an amenable number.

15154144081 is a deficient number, since it is larger than the sum of its proper divisors (1).

15154144081 is an equidigital number, since it uses as much as digits as its factorization.

15154144081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12800, while the sum is 34.

The spelling of 15154144081 in words is "fifteen billion, one hundred fifty-four million, one hundred forty-four thousand, eighty-one".