121804949 has 8 divisors (see below), whose sum is σ = 147394368. Its totient is φ = 98262720.

The previous prime is 121804931. The next prime is 121804951. The reversal of 121804949 is 949408121.

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

It is not a de Polignac number, because 121804949 - 2²⁰ = 120756373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121804909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511667 + ... + 511904.

It is an arithmetic number, because the mean of its divisors is an integer number (18424296).

Almost surely, 2^121804949 is an apocalyptic number.

It is an amenable number.

121804949 is a deficient number, since it is larger than the sum of its proper divisors (25589419).

121804949 is a wasteful number, since it uses less digits than its factorization.

121804949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023595.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 121804949 is about 11036.5279413410. The cubic root of 121804949 is about 495.7031112739.

The spelling of 121804949 in words is "one hundred twenty-one million, eight hundred four thousand, nine hundred forty-nine".