121054398 has 16 divisors (see below), whose sum is σ = 242901120. Its totient is φ = 40219416.

The previous prime is 121054393. The next prime is 121054403. The reversal of 121054398 is 893450121.

It is an interprime number because it is at equal distance from previous prime (121054393) and next prime (121054403).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121054391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31018 + ... + 34701.

It is an arithmetic number, because the mean of its divisors is an integer number (15181320).

Almost surely, 2^121054398 is an apocalyptic number.

121054398 is an abundant number, since it is smaller than the sum of its proper divisors (121846722).

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

121054398 is a wasteful number, since it uses less digits than its factorization.

121054398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66031.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 121054398 is about 11002.4723585202. The cubic root of 121054398 is about 494.6828536788.

The spelling of 121054398 in words is "one hundred twenty-one million, fifty-four thousand, three hundred ninety-eight".