154445023 has 4 divisors (see below), whose sum is σ = 161160048. Its totient is φ = 147730000.

The previous prime is 154445009. The next prime is 154445041. The reversal of 154445023 is 320544451.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154445023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154444982 and 154445000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154448023) 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, 3357478 + ... + 3357523.

It is an arithmetic number, because the mean of its divisors is an integer number (40290012).

Almost surely, 2^154445023 is an apocalyptic number.

154445023 is a deficient number, since it is larger than the sum of its proper divisors (6715025).

154445023 is an equidigital number, since it uses as much as digits as its factorization.

154445023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6715024.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 154445023 is about 12427.5911986193. The cubic root of 154445023 is about 536.5266587351.

Adding to 154445023 its reverse (320544451), we get a palindrome (474989474).

The spelling of 154445023 in words is "one hundred fifty-four million, four hundred forty-five thousand, twenty-three".