122819065 has 4 divisors (see below), whose sum is σ = 147382884. Its totient is φ = 98255248.

The previous prime is 122819063. The next prime is 122819077. The reversal of 122819065 is 560918221.

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 51652969 + 71166096 = 7187^2 + 8436^2 .

It is a cyclic number.

It is not a de Polignac number, because 122819065 - 2¹ = 122819063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122819065.

It is not an unprimeable number, because it can be changed into a prime (122819063) 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, 12281902 + ... + 12281911.

It is an arithmetic number, because the mean of its divisors is an integer number (36845721).

Almost surely, 2^122819065 is an apocalyptic number.

It is an amenable number.

122819065 is a deficient number, since it is larger than the sum of its proper divisors (24563819).

122819065 is an equidigital number, since it uses as much as digits as its factorization.

122819065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24563818.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 122819065 is about 11082.3763245975. The cubic root of 122819065 is about 497.0750088873.

The spelling of 122819065 in words is "one hundred twenty-two million, eight hundred nineteen thousand, sixty-five".