121538854 has 8 divisors (see below), whose sum is σ = 190234800. Its totient is φ = 58127256.

The previous prime is 121538827. The next prime is 121538863. The reversal of 121538854 is 458835121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1321029 + ... + 1321120.

It is an arithmetic number, because the mean of its divisors is an integer number (23779350).

Almost surely, 2^121538854 is an apocalyptic number.

121538854 is a deficient number, since it is larger than the sum of its proper divisors (68695946).

121538854 is a wasteful number, since it uses less digits than its factorization.

121538854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642174.

The product of its digits is 38400, while the sum is 37.

The square root of 121538854 is about 11024.4661548757. The cubic root of 121538854 is about 495.3418772142.

The spelling of 121538854 in words is "one hundred twenty-one million, five hundred thirty-eight thousand, eight hundred fifty-four".