121477805 has 8 divisors (see below), whose sum is σ = 147826944. Its totient is φ = 95813200.

The previous prime is 121477787. The next prime is 121477817. The reversal of 121477805 is 508774121.

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

It is not a de Polignac number, because 121477805 - 2¹⁴ = 121461421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 170741 + ... + 171450.

It is an arithmetic number, because the mean of its divisors is an integer number (18478368).

Almost surely, 2^121477805 is an apocalyptic number.

It is an amenable number.

121477805 is a deficient number, since it is larger than the sum of its proper divisors (26349139).

121477805 is an equidigital number, since it uses as much as digits as its factorization.

121477805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342267.

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 121477805 is about 11021.6970108963. The cubic root of 121477805 is about 495.2589265366.

The spelling of 121477805 in words is "one hundred twenty-one million, four hundred seventy-seven thousand, eight hundred five".