154434043 has 4 divisors (see below), whose sum is σ = 154473480. Its totient is φ = 154394608.

The previous prime is 154434037. The next prime is 154434047. The reversal of 154434043 is 340434451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154434043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154434047) 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 3 ways as a sum of consecutive naturals, for example, 13105 + ... + 21922.

It is an arithmetic number, because the mean of its divisors is an integer number (38618370).

Almost surely, 2^154434043 is an apocalyptic number.

154434043 is a deficient number, since it is larger than the sum of its proper divisors (39437).

154434043 is an equidigital number, since it uses as much as digits as its factorization.

154434043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39436.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 154434043 is about 12427.1494317885. The cubic root of 154434043 is about 536.5139439576.

Adding to 154434043 its reverse (340434451), we get a palindrome (494868494).

The spelling of 154434043 in words is "one hundred fifty-four million, four hundred thirty-four thousand, forty-three".