13154521417 has 2 divisors, whose sum is σ = 13154521418. Its totient is φ = 13154521416.

The previous prime is 13154521361. The next prime is 13154521433. The reversal of 13154521417 is 71412545131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11478765321 + 1675756096 = 107139^2 + 40936^2 .

It is a cyclic number.

It is not a de Polignac number, because 13154521417 - 2¹⁵ = 13154488649 is a prime.

It is not a weakly prime, because it can be changed into another prime (13154521517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6577260708 + 6577260709.

It is an arithmetic number, because the mean of its divisors is an integer number (6577260709).

Almost surely, 2^13154521417 is an apocalyptic number.

It is an amenable number.

13154521417 is a deficient number, since it is larger than the sum of its proper divisors (1).

13154521417 is an equidigital number, since it uses as much as digits as its factorization.

13154521417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 34.

The spelling of 13154521417 in words is "thirteen billion, one hundred fifty-four million, five hundred twenty-one thousand, four hundred seventeen".