154514449 has 4 divisors (see below), whose sum is σ = 155315236. Its totient is φ = 153713664.

The previous prime is 154514443. The next prime is 154514453. The reversal of 154514449 is 944415451.

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 11950849 + 142563600 = 3457^2 + 11940^2 .

It is a cyclic number.

It is not a de Polignac number, because 154514449 - 2⁹ = 154513937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154514443) 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, 400104 + ... + 400489.

It is an arithmetic number, because the mean of its divisors is an integer number (38828809).

Almost surely, 2^154514449 is an apocalyptic number.

It is an amenable number.

154514449 is a deficient number, since it is larger than the sum of its proper divisors (800787).

154514449 is an equidigital number, since it uses as much as digits as its factorization.

154514449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800786.

The product of its digits is 57600, while the sum is 37.

The square root of 154514449 is about 12430.3841050870. The cubic root of 154514449 is about 536.6070396998.

It can be divided in two parts, 15451 and 4449, that added together give a triangular number (19900 = T₁₉₉).

The spelling of 154514449 in words is "one hundred fifty-four million, five hundred fourteen thousand, four hundred forty-nine".