• 154 can be written using four 4's:
154 is nontrivially palindromic in base 6, base 8, base 9 and base 13.
154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
154 is an esthetic number in base 8 and base 16, because in such bases its adjacent digits differ by 1.
It is a sphenic number, since it is the product of 3 distinct primes.
154 is an undulating number in base 6, base 8 and base 9.
154 is a nontrivial repdigit in base 13.
It is a plaindrome in base 13 and base 16.
It is a nialpdrome in base 7, base 13, base 14 and base 15.
It is a zygodrome in base 13.
It is a self number, because there is not a number n which added to its sum of digits gives 154.
It is a congruent number.
154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
154 is the 7-th nonagonal number.
154 is a wasteful number, since it uses less digits than its factorization.
154 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20.
The square root of 154 is about 12.4096736460. The cubic root of 154 is about 5.3601084110.
Subtracting from 154 its sum of digits (10), we obtain a square (144 = 122).
Multiplying 154 by its sum of digits (10), we get a triangular number (1540 = T55).
The spelling of 154 in words is "one hundred fifty-four", and thus it is an aban number.