154967408281 has 9 divisors (see below), whose sum is σ = 180271415199. Its totient is φ = 132826845144.

The previous prime is 154967408273. The next prime is 154967408291. The reversal of 154967408281 is 182804769451.

The square root of 154967408281 is 393659.

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

154967408281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 84166713225 + 70800695056 = 290115^2 + 266084^2 .

It is not a de Polignac number, because 154967408281 - 2³ = 154967408273 is a prime.

It is a super-2 number, since 2×154967408281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154967408291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2727495 + ... + 2783731.

Almost surely, 2^154967408281 is an apocalyptic number.

154967408281 is the 393659-th square number.

154967408281 is the 196830-th centered octagonal number.

It is an amenable number.

154967408281 is a deficient number, since it is larger than the sum of its proper divisors (25304006918).

154967408281 is an frugal number, since it uses more digits than its factorization.

154967408281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112488 (or 56244 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 154967408281 in words is "one hundred fifty-four billion, nine hundred sixty-seven million, four hundred eight thousand, two hundred eighty-one".