154750475449 has 4 divisors (see below), whose sum is σ = 154754515840. Its totient is φ = 154746435060.

The previous prime is 154750475417. The next prime is 154750475459. The reversal of 154750475449 is 944574057451.

It is a happy number.

154750475449 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 154750475449 - 2⁵ = 154750475417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154750475449.

It is not an unprimeable number, because it can be changed into a prime (154750475459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1962189 + ... + 2039530.

It is an arithmetic number, because the mean of its divisors is an integer number (38688628960).

Almost surely, 2^154750475449 is an apocalyptic number.

It is an amenable number.

154750475449 is a deficient number, since it is larger than the sum of its proper divisors (4040391).

154750475449 is an equidigital number, since it uses as much as digits as its factorization.

154750475449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040390.

The product of its (nonzero) digits is 14112000, while the sum is 55.

The spelling of 154750475449 in words is "one hundred fifty-four billion, seven hundred fifty million, four hundred seventy-five thousand, four hundred forty-nine".