154404145 has 24 divisors (see below), whose sum is σ = 221373864. Its totient is φ = 103009536.

The previous prime is 154404143. The next prime is 154404167. The reversal of 154404145 is 541404451.

It can be written as a sum of positive squares in 4 ways, for example, as 23736384 + 130667761 = 4872^2 + 11431^2 .

It is not a de Polignac number, because 154404145 - 2¹ = 154404143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154404143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 549 + ... + 17581.

It is an arithmetic number, because the mean of its divisors is an integer number (9223911).

Almost surely, 2^154404145 is an apocalyptic number.

It is an amenable number.

154404145 is a deficient number, since it is larger than the sum of its proper divisors (66969719).

154404145 is a wasteful number, since it uses less digits than its factorization.

154404145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17089 (or 17082 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 154404145 is about 12425.9464428268. The cubic root of 154404145 is about 536.4793191887.

Adding to 154404145 its reverse (541404451), we get a palindrome (695808596).

The spelling of 154404145 in words is "one hundred fifty-four million, four hundred four thousand, one hundred forty-five".