121554414 has 48 divisors (see below), whose sum is σ = 268894080. Its totient is φ = 39676560.

The previous prime is 121554397. The next prime is 121554427. The reversal of 121554414 is 414455121.

121554414 is a `hidden beast` number, since 1 + 215 + 5 + 441 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289897 + ... + 290315.

It is an arithmetic number, because the mean of its divisors is an integer number (5601960).

Almost surely, 2^121554414 is an apocalyptic number.

121554414 is an abundant number, since it is smaller than the sum of its proper divisors (147339666).

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

121554414 is a wasteful number, since it uses less digits than its factorization.

121554414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725 (or 722 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 121554414 is about 11025.1718353956. The cubic root of 121554414 is about 495.3630150107.

The spelling of 121554414 in words is "one hundred twenty-one million, five hundred fifty-four thousand, four hundred fourteen".