121814705 has 4 divisors (see below), whose sum is σ = 146177652. Its totient is φ = 97451760.

The previous prime is 121814689. The next prime is 121814807. The reversal of 121814705 is 507418121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40742689 + 81072016 = 6383^2 + 9004^2 .

It is not a de Polignac number, because 121814705 - 2⁴ = 121814689 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12181466 + ... + 12181475.

It is an arithmetic number, because the mean of its divisors is an integer number (36544413).

Almost surely, 2^121814705 is an apocalyptic number.

It is an amenable number.

121814705 is a deficient number, since it is larger than the sum of its proper divisors (24362947).

121814705 is an equidigital number, since it uses as much as digits as its factorization.

121814705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24362946.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 121814705 is about 11036.9699193212. The cubic root of 121814705 is about 495.7163454118.

The spelling of 121814705 in words is "one hundred twenty-one million, eight hundred fourteen thousand, seven hundred five".