154443434 has 4 divisors (see below), whose sum is σ = 231665154. Its totient is φ = 77221716.

The previous prime is 154443409. The next prime is 154443449. The reversal of 154443434 is 434344451.

154443434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434344451 = 67 ⋅6482753.

It can be written as a sum of positive squares in only one way, i.e., 94148209 + 60295225 = 9703^2 + 7765^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 154443434.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38610857 + ... + 38610860.

Almost surely, 2^154443434 is an apocalyptic number.

154443434 is a deficient number, since it is larger than the sum of its proper divisors (77221720).

154443434 is an equidigital number, since it uses as much as digits as its factorization.

154443434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77221719.

The product of its digits is 46080, while the sum is 32.

The square root of 154443434 is about 12427.5272681254. The cubic root of 154443434 is about 536.5248187194.

Adding to 154443434 its reverse (434344451), we get a palindrome (588787885).

The spelling of 154443434 in words is "one hundred fifty-four million, four hundred forty-three thousand, four hundred thirty-four".