154540189456 has 45 divisors (see below), whose sum is σ = 313079231829. Its totient is φ = 73893228288.

The previous prime is 154540189411. The next prime is 154540189457. The reversal of 154540189456 is 654981045451.

The square root of 154540189456 is 393116.

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

It can be written as a sum of positive squares in only one way, i.e., 41902090000 + 112638099456 = 204700^2 + 335616^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154540189457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 36164536 + ... + 36168808.

Almost surely, 2^154540189456 is an apocalyptic number.

154540189456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

154540189456 is the 393116-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154540189456

154540189456 is an abundant number, since it is smaller than the sum of its proper divisors (158539042373).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154540189456 is an frugal number, since it uses more digits than its factorization.

154540189456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8600 (or 4298 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 52.

The spelling of 154540189456 in words is "one hundred fifty-four billion, five hundred forty million, one hundred eighty-nine thousand, four hundred fifty-six".