120154 has 4 divisors (see below), whose sum is σ = 180234. Its totient is φ = 60076.

The previous prime is 120121. The next prime is 120157. The reversal of 120154 is 451021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 451021 = 163 ⋅2767.

It can be written as a sum of positive squares in only one way, i.e., 106929 + 13225 = 327^2 + 115^2 .

It is not an unprimeable number, because it can be changed into a prime (120157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30037 + ... + 30040.

2¹²⁰¹⁵⁴ is an apocalyptic number.

120154 is a deficient number, since it is larger than the sum of its proper divisors (60080).

120154 is an equidigital number, since it uses as much as digits as its factorization.

120154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60079.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 120154 is about 346.6323700984. The cubic root of 120154 is about 49.3453322814.

Adding to 120154 its reverse (451021), we get a palindrome (571175).

The spelling of 120154 in words is "one hundred twenty thousand, one hundred fifty-four".