121554342 has 48 divisors (see below), whose sum is σ = 324149280. Its totient is φ = 32057856.

The previous prime is 121554313. The next prime is 121554347. The reversal of 121554342 is 243455121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121554347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35467 + ... + 38742.

It is an arithmetic number, because the mean of its divisors is an integer number (6753110).

Almost surely, 2^121554342 is an apocalyptic number.

121554342 is an abundant number, since it is smaller than the sum of its proper divisors (202594938).

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

121554342 is a wasteful number, since it uses less digits than its factorization.

121554342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74237 (or 74234 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 121554342 is about 11025.1685701399. The cubic root of 121554342 is about 495.3629172050.

The spelling of 121554342 in words is "one hundred twenty-one million, five hundred fifty-four thousand, three hundred forty-two".