121820795 has 4 divisors (see below), whose sum is σ = 146184960. Its totient is φ = 97456632.

The previous prime is 121820791. The next prime is 121820819. The reversal of 121820795 is 597028121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 597028121 = 719 ⋅830359.

It is a cyclic number.

It is not a de Polignac number, because 121820795 - 2² = 121820791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121820791) 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, 12182075 + ... + 12182084.

It is an arithmetic number, because the mean of its divisors is an integer number (36546240).

Almost surely, 2^121820795 is an apocalyptic number.

121820795 is a deficient number, since it is larger than the sum of its proper divisors (24364165).

121820795 is an equidigital number, since it uses as much as digits as its factorization.

121820795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24364164.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 121820795 is about 11037.2458068125. The cubic root of 121820795 is about 495.7246062158.

The spelling of 121820795 in words is "one hundred twenty-one million, eight hundred twenty thousand, seven hundred ninety-five".