154393345 has 4 divisors (see below), whose sum is σ = 185272020. Its totient is φ = 123514672.

The previous prime is 154393339. The next prime is 154393367. The reversal of 154393345 is 543393451.

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 25321024 + 129072321 = 5032^2 + 11361^2 .

It is a cyclic number.

It is not a de Polignac number, because 154393345 - 2⁵ = 154393313 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15439330 + ... + 15439339.

It is an arithmetic number, because the mean of its divisors is an integer number (46318005).

Almost surely, 2^154393345 is an apocalyptic number.

It is an amenable number.

154393345 is a deficient number, since it is larger than the sum of its proper divisors (30878675).

154393345 is an equidigital number, since it uses as much as digits as its factorization.

154393345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30878674.

The product of its digits is 97200, while the sum is 37.

The square root of 154393345 is about 12425.5118606840. The cubic root of 154393345 is about 536.4668106477.

The spelling of 154393345 in words is "one hundred fifty-four million, three hundred ninety-three thousand, three hundred forty-five".