121154 has 8 divisors (see below), whose sum is σ = 198288. Its totient is φ = 55060.

The previous prime is 121151. The next prime is 121157. The reversal of 121154 is 451121.

It is an interprime number because it is at equal distance from previous prime (121151) and next prime (121157).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2732 + ... + 2775.

It is an arithmetic number, because the mean of its divisors is an integer number (24786).

2¹²¹¹⁵⁴ is an apocalyptic number.

121154 is a deficient number, since it is larger than the sum of its proper divisors (77134).

121154 is a wasteful number, since it uses less digits than its factorization.

121154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5520.

The product of its digits is 40, while the sum is 14.

The square root of 121154 is about 348.0718316670. The cubic root of 121154 is about 49.4818489380.

Adding to 121154 its reverse (451121), we get a palindrome (572275).

The spelling of 121154 in words is "one hundred twenty-one thousand, one hundred fifty-four".