154881 has 6 divisors (see below), whose sum is σ = 223730. Its totient is φ = 103248.

The previous prime is 154877. The next prime is 154883. The reversal of 154881 is 188451.

It can be written as a sum of positive squares in only one way, i.e., 129600 + 25281 = 360^2 + 159^2 .

It is not a de Polignac number, because 154881 - 2² = 154877 is a prime.

It is a super-2 number, since 2×154881² = 47976248322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8596 + ... + 8613.

2¹⁵⁴⁸⁸¹ is an apocalyptic number.

It is an amenable number.

154881 is a deficient number, since it is larger than the sum of its proper divisors (68849).

154881 is a wasteful number, since it uses less digits than its factorization.

154881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17215 (or 17212 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 154881 is about 393.5492345311. The cubic root of 154881 is about 53.7031031362.

It can be divided in two parts, 154 and 881, that added together give a triangular number (1035 = T₄₅).

The spelling of 154881 in words is "one hundred fifty-four thousand, eight hundred eighty-one".