121473851 has 8 divisors (see below), whose sum is σ = 123140160. Its totient is φ = 119817792.

The previous prime is 121473817. The next prime is 121473929. The reversal of 121473851 is 158374121.

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

It is a cyclic number.

It is not a de Polignac number, because 121473851 - 2¹⁸ = 121211707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121470851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23006 + ... + 27788.

It is an arithmetic number, because the mean of its divisors is an integer number (15392520).

Almost surely, 2^121473851 is an apocalyptic number.

121473851 is a deficient number, since it is larger than the sum of its proper divisors (1666309).

121473851 is a wasteful number, since it uses less digits than its factorization.

121473851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5125.

The product of its digits is 6720, while the sum is 32.

The square root of 121473851 is about 11021.5176359701. The cubic root of 121473851 is about 495.2535530583.

The spelling of 121473851 in words is "one hundred twenty-one million, four hundred seventy-three thousand, eight hundred fifty-one".