121344858 has 16 divisors (see below), whose sum is σ = 269655360. Its totient is φ = 40448268.

The previous prime is 121344823. The next prime is 121344889. The reversal of 121344858 is 858443121.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123510 + ... + 1123617.

It is an arithmetic number, because the mean of its divisors is an integer number (16853460).

Almost surely, 2^121344858 is an apocalyptic number.

121344858 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

121344858 is an abundant number, since it is smaller than the sum of its proper divisors (148310502).

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

121344858 is a wasteful number, since it uses less digits than its factorization.

121344858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247138 (or 2247132 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 121344858 is about 11015.6642105685. The cubic root of 121344858 is about 495.0781878328.

Adding to 121344858 its reverse (858443121), we get a palindrome (979787979).

The spelling of 121344858 in words is "one hundred twenty-one million, three hundred forty-four thousand, eight hundred fifty-eight".