154423441 has 4 divisors (see below), whose sum is σ = 154457892. Its totient is φ = 154388992.

The previous prime is 154423361. The next prime is 154423447. The reversal of 154423441 is 144324451.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52998400 + 101425041 = 7280^2 + 10071^2 .

It is a cyclic number.

It is not a de Polignac number, because 154423441 - 2⁹ = 154422929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154423447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9280 + ... + 19873.

It is an arithmetic number, because the mean of its divisors is an integer number (38614473).

Almost surely, 2^154423441 is an apocalyptic number.

It is an amenable number.

154423441 is a deficient number, since it is larger than the sum of its proper divisors (34451).

154423441 is an equidigital number, since it uses as much as digits as its factorization.

154423441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34450.

The product of its digits is 7680, while the sum is 28.

The square root of 154423441 is about 12426.7228584209. The cubic root of 154423441 is about 536.5016663300.

Adding to 154423441 its reverse (144324451), we get a palindrome (298747892).

The spelling of 154423441 in words is "one hundred fifty-four million, four hundred twenty-three thousand, four hundred forty-one".