121254 has 16 divisors (see below), whose sum is σ = 277248. Its totient is φ = 34632.

The previous prime is 121229. The next prime is 121259. The reversal of 121254 is 452121.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a nialpdrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 121254.

It is not an unprimeable number, because it can be changed into a prime (121259) by changing a digit.

121254 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1402 + ... + 1485.

It is an arithmetic number, because the mean of its divisors is an integer number (17328).

2¹²¹²⁵⁴ is an apocalyptic number.

121254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121254 is an abundant number, since it is smaller than the sum of its proper divisors (155994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121254 is a wasteful number, since it uses less digits than its factorization.

121254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2899.

The product of its digits is 80, while the sum is 15.

The square root of 121254 is about 348.2154505475. The cubic root of 121254 is about 49.4954592305.

Adding to 121254 its reverse (452121), we get a palindrome (573375).

The spelling of 121254 in words is "one hundred twenty-one thousand, two hundred fifty-four".