15146650549 has 2 divisors, whose sum is σ = 15146650550. Its totient is φ = 15146650548.

The previous prime is 15146650513. The next prime is 15146650559. The reversal of 15146650549 is 94505664151.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14374811025 + 771839524 = 119895^2 + 27782^2 .

It is an emirp because it is prime and its reverse (94505664151) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15146650549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15146650499 and 15146650508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15146650559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7573325274 + 7573325275.

It is an arithmetic number, because the mean of its divisors is an integer number (7573325275).

Almost surely, 2^15146650549 is an apocalyptic number.

It is an amenable number.

15146650549 is a deficient number, since it is larger than the sum of its proper divisors (1).

15146650549 is an equidigital number, since it uses as much as digits as its factorization.

15146650549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 15146650549 in words is "fifteen billion, one hundred forty-six million, six hundred fifty thousand, five hundred forty-nine".