121504154 has 16 divisors (see below), whose sum is σ = 188160192. Its totient is φ = 58809408.

The previous prime is 121504127. The next prime is 121504157. The reversal of 121504154 is 451405121.

It is not an unprimeable number, because it can be changed into a prime (121504157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3467 + ... + 15969.

It is an arithmetic number, because the mean of its divisors is an integer number (11760012).

Almost surely, 2^121504154 is an apocalyptic number.

121504154 is a deficient number, since it is larger than the sum of its proper divisors (66656038).

121504154 is a wasteful number, since it uses less digits than its factorization.

121504154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12661.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 121504154 is about 11022.8922701803. The cubic root of 121504154 is about 495.2947317990.

Adding to 121504154 its reverse (451405121), we get a palindrome (572909275).

The spelling of 121504154 in words is "one hundred twenty-one million, five hundred four thousand, one hundred fifty-four".