154808410849 has 9 divisors (see below), whose sum is σ = 155314074073. Its totient is φ = 154304392432.

The previous prime is 154808410837. The next prime is 154808410871. The reversal of 154808410849 is 948014808451.

The square root of 154808410849 is 393457.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 5633253025 + 149175157824 = 75055^2 + 386232^2 .

It is not a de Polignac number, because 154808410849 - 2⁵ = 154808410817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154808410796 and 154808410805.

It is not an unprimeable number, because it can be changed into a prime (154808410829) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 200269227 + ... + 200269999.

Almost surely, 2^154808410849 is an apocalyptic number.

154808410849 is the 393457-th square number.

154808410849 is the 196729-th centered octagonal number.

It is an amenable number.

154808410849 is a deficient number, since it is larger than the sum of its proper divisors (505663224).

154808410849 is an frugal number, since it uses more digits than its factorization.

154808410849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564 (or 1282 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 52.

The spelling of 154808410849 in words is "one hundred fifty-four billion, eight hundred eight million, four hundred ten thousand, eight hundred forty-nine".