15315055452149 has 2 divisors, whose sum is σ = 15315055452150. Its totient is φ = 15315055452148.

The previous prime is 15315055452113. The next prime is 15315055452157. The reversal of 15315055452149 is 94125455051351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14919562882225 + 395492569924 = 3862585^2 + 628882^2 .

It is a cyclic number.

It is not a de Polignac number, because 15315055452149 - 2²⁰ = 15315054403573 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15315055452097 and 15315055452106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15315055452049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7657527726074 + 7657527726075.

It is an arithmetic number, because the mean of its divisors is an integer number (7657527726075).

Almost surely, 2^{15315055452149} is an apocalyptic number.

It is an amenable number.

15315055452149 is a deficient number, since it is larger than the sum of its proper divisors (1).

15315055452149 is an equidigital number, since it uses as much as digits as its factorization.

15315055452149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700000, while the sum is 50.

The spelling of 15315055452149 in words is "fifteen trillion, three hundred fifteen billion, fifty-five million, four hundred fifty-two thousand, one hundred forty-nine".