154145065 has 8 divisors (see below), whose sum is σ = 185125320. Its totient is φ = 123215232.

The previous prime is 154145059. The next prime is 154145077. The reversal of 154145065 is 560541451.

It can be written as a sum of positive squares in 4 ways, for example, as 41615401 + 112529664 = 6451^2 + 10608^2 .

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 154145065 - 2¹⁵ = 154112297 is a prime.

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, 5514 + ... + 18403.

It is an arithmetic number, because the mean of its divisors is an integer number (23140665).

Almost surely, 2^154145065 is an apocalyptic number.

It is an amenable number.

154145065 is a deficient number, since it is larger than the sum of its proper divisors (30980255).

154145065 is a wasteful number, since it uses less digits than its factorization.

154145065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25211.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 154145065 is about 12415.5171056223. The cubic root of 154145065 is about 536.1790922013.

The spelling of 154145065 in words is "one hundred fifty-four million, one hundred forty-five thousand, sixty-five".