121319858 has 8 divisors (see below), whose sum is σ = 198523440. Its totient is φ = 55145380.

The previous prime is 121319857. The next prime is 121319897. The reversal of 121319858 is 858913121.

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

It is not an unprimeable number, because it can be changed into a prime (121319857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2757248 + ... + 2757291.

It is an arithmetic number, because the mean of its divisors is an integer number (24815430).

Almost surely, 2^121319858 is an apocalyptic number.

121319858 is a deficient number, since it is larger than the sum of its proper divisors (77203582).

121319858 is a wasteful number, since it uses less digits than its factorization.

121319858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5514552.

The product of its digits is 17280, while the sum is 38.

The square root of 121319858 is about 11014.5294043822. The cubic root of 121319858 is about 495.0441861043.

The spelling of 121319858 in words is "one hundred twenty-one million, three hundred nineteen thousand, eight hundred fifty-eight".