154640345 has 8 divisors (see below), whose sum is σ = 186387264. Its totient is φ = 123166384.

The previous prime is 154640333. The next prime is 154640351. The reversal of 154640345 is 543046451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 154640345 - 2⁴ = 154640329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66989 + ... + 69258.

It is an arithmetic number, because the mean of its divisors is an integer number (23298408).

Almost surely, 2^154640345 is an apocalyptic number.

It is an amenable number.

154640345 is a deficient number, since it is larger than the sum of its proper divisors (31746919).

154640345 is a wasteful number, since it uses less digits than its factorization.

154640345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136479.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 154640345 is about 12435.4471170119. The cubic root of 154640345 is about 536.7527398605.

Adding to 154640345 its reverse (543046451), we get a palindrome (697686796).

The spelling of 154640345 in words is "one hundred fifty-four million, six hundred forty thousand, three hundred forty-five".