154845 has 32 divisors (see below), whose sum is σ = 291840. Its totient is φ = 77760.

The previous prime is 154841. The next prime is 154849. The reversal of 154845 is 548451.

154845 is nontrivially palindromic in base 6.

It is an interprime number because it is at equal distance from previous prime (154841) and next prime (154849).

It is not a de Polignac number, because 154845 - 2² = 154841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4167 + ... + 4203.

It is an arithmetic number, because the mean of its divisors is an integer number (9120).

2¹⁵⁴⁸⁴⁵ is an apocalyptic number.

154845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

154845 is a deficient number, since it is larger than the sum of its proper divisors (136995).

154845 is a wasteful number, since it uses less digits than its factorization.

154845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 76 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 154845 is about 393.5034942666. The cubic root of 154845 is about 53.6989419597.

It can be divided in two parts, 154 and 845, that added together give a palindrome (999).

The spelling of 154845 in words is "one hundred fifty-four thousand, eight hundred forty-five".