154545 has 8 divisors (see below), whose sum is σ = 247296. Its totient is φ = 82416.

The previous prime is 154543. The next prime is 154571. The reversal of 154545 is 545451.

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

It is not a de Polignac number, because 154545 - 2¹ = 154543 is a prime.

154545 is a modest number, since divided by 4545 gives 15 as remainder.

It is a Curzon number.

154545 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (154543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5137 + ... + 5166.

It is an arithmetic number, because the mean of its divisors is an integer number (30912).

2¹⁵⁴⁵⁴⁵ is an apocalyptic number.

154545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

154545 is a deficient number, since it is larger than the sum of its proper divisors (92751).

154545 is a wasteful number, since it uses less digits than its factorization.

154545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10311.

The product of its digits is 2000, while the sum is 24.

The square root of 154545 is about 393.1221184314. The cubic root of 154545 is about 53.6642403817.

Adding to 154545 its reverse (545451), we get a palindrome (699996).

It can be divided in two parts, 15 and 4545, that added together give a triangular number (4560 = T₉₅).

The spelling of 154545 in words is "one hundred fifty-four thousand, five hundred forty-five".