154345543 has 6 divisors (see below), whose sum is σ = 169652672. Its totient is φ = 140314020.

The previous prime is 154345523. The next prime is 154345547. The reversal of 154345543 is 345543451.

It is not a de Polignac number, because 154345543 - 2²¹ = 152248391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154345499 and 154345508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154345547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 637671 + ... + 637912.

Almost surely, 2^154345543 is an apocalyptic number.

154345543 is a deficient number, since it is larger than the sum of its proper divisors (15307129).

154345543 is a wasteful number, since it uses less digits than its factorization.

154345543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275605 (or 1275594 counting only the distinct ones).

The product of its digits is 72000, while the sum is 34.

The square root of 154345543 is about 12423.5881692851. The cubic root of 154345543 is about 536.4114394495.

Adding to 154345543 its reverse (345543451), we get a palindrome (499888994).

The spelling of 154345543 in words is "one hundred fifty-four million, three hundred forty-five thousand, five hundred forty-three".