121284573 has 4 divisors (see below), whose sum is σ = 161712768. Its totient is φ = 80856380.

The previous prime is 121284547. The next prime is 121284623. The reversal of 121284573 is 375482121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121284573 - 2⁶ = 121284509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121284523) 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, 20214093 + ... + 20214098.

It is an arithmetic number, because the mean of its divisors is an integer number (40428192).

Almost surely, 2^121284573 is an apocalyptic number.

It is an amenable number.

121284573 is a deficient number, since it is larger than the sum of its proper divisors (40428195).

121284573 is an equidigital number, since it uses as much as digits as its factorization.

121284573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40428194.

The product of its digits is 13440, while the sum is 33.

The square root of 121284573 is about 11012.9275399414. The cubic root of 121284573 is about 494.9961881147.

The spelling of 121284573 in words is "one hundred twenty-one million, two hundred eighty-four thousand, five hundred seventy-three".