154448642 has 8 divisors (see below), whose sum is σ = 234276300. Its totient is φ = 76356544.

The previous prime is 154448597. The next prime is 154448653. The reversal of 154448642 is 246844451.

154448642 is digitally balanced in base 3, 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 2 ways, for example, as 147889921 + 6558721 = 12161^2 + 2561^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 154448596 and 154448605.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 433667 + ... + 434022.

Almost surely, 2^154448642 is an apocalyptic number.

154448642 is a deficient number, since it is larger than the sum of its proper divisors (79827658).

154448642 is an equidigital number, since it uses as much as digits as its factorization.

154448642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867780.

The product of its digits is 122880, while the sum is 38.

The square root of 154448642 is about 12427.7368012040. The cubic root of 154448642 is about 536.5308493845.

The spelling of 154448642 in words is "one hundred fifty-four million, four hundred forty-eight thousand, six hundred forty-two".